/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 19:05:53,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 19:05:53,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 19:05:53,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 19:05:53,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 19:05:53,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 19:05:53,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 19:05:53,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 19:05:53,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 19:05:53,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 19:05:53,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 19:05:53,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 19:05:53,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 19:05:53,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 19:05:53,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 19:05:53,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 19:05:53,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 19:05:53,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 19:05:53,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 19:05:53,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 19:05:53,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 19:05:53,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 19:05:53,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 19:05:53,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 19:05:53,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 19:05:53,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 19:05:53,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 19:05:53,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 19:05:53,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 19:05:53,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 19:05:53,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 19:05:53,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 19:05:53,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 19:05:53,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 19:05:53,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 19:05:53,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 19:05:53,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 19:05:53,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 19:05:53,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 19:05:53,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 19:05:53,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 19:05:53,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-11 19:05:53,826 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 19:05:53,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 19:05:53,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 19:05:53,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 19:05:53,829 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 19:05:53,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 19:05:53,830 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 19:05:53,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 19:05:53,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 19:05:53,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 19:05:53,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 19:05:53,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 19:05:53,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 19:05:53,831 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 19:05:53,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 19:05:53,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 19:05:53,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 19:05:53,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 19:05:53,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 19:05:53,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 19:05:53,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 19:05:53,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 19:05:53,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 19:05:53,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 19:05:53,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 19:05:53,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 19:05:53,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 19:05:53,834 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 19:05:53,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 19:05:54,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 19:05:54,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 19:05:54,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 19:05:54,140 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 19:05:54,141 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 19:05:54,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-11 19:05:54,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718e763e6/a98e43abe666444eb6bc1962459000a2/FLAG6f34c742c [2021-03-11 19:05:54,697 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 19:05:54,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2021-03-11 19:05:54,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718e763e6/a98e43abe666444eb6bc1962459000a2/FLAG6f34c742c [2021-03-11 19:05:55,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/718e763e6/a98e43abe666444eb6bc1962459000a2 [2021-03-11 19:05:55,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 19:05:55,187 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 19:05:55,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 19:05:55,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 19:05:55,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 19:05:55,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547cf934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55, skipping insertion in model container [2021-03-11 19:05:55,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 19:05:55,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 19:05:55,370 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 19:05:55,549 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-03-11 19:05:55,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 19:05:55,564 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 19:05:55,587 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 19:05:55,606 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i[31244,31257] [2021-03-11 19:05:55,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 19:05:55,683 INFO L208 MainTranslator]: Completed translation [2021-03-11 19:05:55,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55 WrapperNode [2021-03-11 19:05:55,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 19:05:55,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 19:05:55,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 19:05:55,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 19:05:55,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 19:05:55,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 19:05:55,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 19:05:55,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 19:05:55,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... [2021-03-11 19:05:55,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 19:05:55,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 19:05:55,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 19:05:55,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 19:05:55,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 19:05:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 19:05:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 19:05:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 19:05:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-11 19:05:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-11 19:05:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 19:05:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 19:05:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 19:05:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 19:05:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 19:05:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 19:05:55,819 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-11 19:05:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-11 19:05:55,820 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 19:05:56,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 19:05:56,332 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 19:05:56,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 07:05:56 BoogieIcfgContainer [2021-03-11 19:05:56,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 19:05:56,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 19:05:56,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 19:05:56,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 19:05:56,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 07:05:55" (1/3) ... [2021-03-11 19:05:56,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68adc1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 07:05:56, skipping insertion in model container [2021-03-11 19:05:56,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:05:55" (2/3) ... [2021-03-11 19:05:56,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68adc1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 07:05:56, skipping insertion in model container [2021-03-11 19:05:56,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 07:05:56" (3/3) ... [2021-03-11 19:05:56,340 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2021-03-11 19:05:56,345 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 19:05:56,349 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 19:05:56,349 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 19:05:56,381 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,382 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,382 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,382 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,382 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,382 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,382 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,382 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,383 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,383 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,383 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,383 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,383 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,383 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,383 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,384 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,384 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,384 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,384 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,384 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,384 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,384 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,385 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,385 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,385 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,385 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,385 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,385 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,385 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,386 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,386 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,386 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,386 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,386 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,386 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,387 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,387 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,387 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,387 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,387 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,387 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,388 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,388 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,388 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,388 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,388 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,388 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,388 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,389 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,389 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,389 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,410 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,410 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,410 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,410 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,410 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,410 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,411 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,411 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,411 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,411 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,411 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,411 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,412 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,413 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,413 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,413 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,413 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,413 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,413 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,413 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,414 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,414 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,414 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,414 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,414 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,414 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,414 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,414 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,415 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,415 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,415 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,415 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,415 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,415 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,415 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,416 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,416 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,416 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,416 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,416 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,416 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,416 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,416 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,417 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,417 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,417 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,417 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,417 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,417 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,417 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,418 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,418 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,422 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,423 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,423 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,423 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,423 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,423 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,435 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,436 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,436 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,436 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,436 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,436 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,436 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,436 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,436 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,442 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,442 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,443 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,443 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,443 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,443 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,445 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,446 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,446 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,446 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,446 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,446 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,446 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,446 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,446 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:05:56,479 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-11 19:05:56,521 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-11 19:05:56,538 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:05:56,538 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:05:56,538 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:05:56,538 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:05:56,539 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:05:56,539 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:05:56,539 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:05:56,539 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:05:56,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 288 flow [2021-03-11 19:05:56,589 INFO L129 PetriNetUnfolder]: 19/144 cut-off events. [2021-03-11 19:05:56,590 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-11 19:05:56,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 144 events. 19/144 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 345 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 97. Up to 12 conditions per place. [2021-03-11 19:05:56,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 288 flow [2021-03-11 19:05:56,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 90 transitions, 228 flow [2021-03-11 19:05:56,603 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:05:56,611 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-11 19:05:56,613 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 90 transitions, 228 flow [2021-03-11 19:05:56,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 228 flow [2021-03-11 19:05:56,643 INFO L129 PetriNetUnfolder]: 16/128 cut-off events. [2021-03-11 19:05:56,643 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-03-11 19:05:56,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 128 events. 16/128 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 333 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 97. Up to 12 conditions per place. [2021-03-11 19:05:56,647 INFO L116 LiptonReduction]: Number of co-enabled transitions 2994 [2021-03-11 19:05:59,408 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2021-03-11 19:05:59,537 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-11 19:05:59,810 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2021-03-11 19:05:59,921 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-11 19:05:59,968 INFO L131 LiptonReduction]: Checked pairs total: 21908 [2021-03-11 19:05:59,969 INFO L133 LiptonReduction]: Total number of compositions: 52 [2021-03-11 19:05:59,970 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3369 [2021-03-11 19:05:59,979 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-11 19:05:59,979 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 19:05:59,979 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:05:59,979 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:05:59,980 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:05:59,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:05:59,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1523215835, now seen corresponding path program 1 times [2021-03-11 19:05:59,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:05:59,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367189397] [2021-03-11 19:05:59,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:06:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:06:00,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:00,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:06:00,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:00,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:00,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:00,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:00,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:00,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:06:00,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367189397] [2021-03-11 19:06:00,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:06:00,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:06:00,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062924650] [2021-03-11 19:06:00,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 19:06:00,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:06:00,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 19:06:00,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 19:06:00,208 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 162 [2021-03-11 19:06:00,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:00,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:06:00,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 162 [2021-03-11 19:06:00,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:06:00,702 INFO L129 PetriNetUnfolder]: 931/2400 cut-off events. [2021-03-11 19:06:00,703 INFO L130 PetriNetUnfolder]: For 501/501 co-relation queries the response was YES. [2021-03-11 19:06:00,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4099 conditions, 2400 events. 931/2400 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 20289 event pairs, 116 based on Foata normal form. 0/2230 useless extension candidates. Maximal degree in co-relation 3420. Up to 666 conditions per place. [2021-03-11 19:06:00,733 INFO L132 encePairwiseOnDemand]: 151/162 looper letters, 50 selfloop transitions, 27 changer transitions 0/109 dead transitions. [2021-03-11 19:06:00,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 109 transitions, 423 flow [2021-03-11 19:06:00,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 19:06:00,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 19:06:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1143 transitions. [2021-03-11 19:06:00,752 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7839506172839507 [2021-03-11 19:06:00,753 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1143 transitions. [2021-03-11 19:06:00,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1143 transitions. [2021-03-11 19:06:00,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:06:00,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1143 transitions. [2021-03-11 19:06:00,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:00,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:00,774 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:00,776 INFO L185 Difference]: Start difference. First operand has 53 places, 50 transitions, 148 flow. Second operand 9 states and 1143 transitions. [2021-03-11 19:06:00,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 109 transitions, 423 flow [2021-03-11 19:06:00,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 109 transitions, 389 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-11 19:06:00,797 INFO L241 Difference]: Finished difference. Result has 58 places, 76 transitions, 288 flow [2021-03-11 19:06:00,799 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=288, PETRI_PLACES=58, PETRI_TRANSITIONS=76} [2021-03-11 19:06:00,800 INFO L335 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places. [2021-03-11 19:06:00,800 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 76 transitions, 288 flow [2021-03-11 19:06:00,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:00,802 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:06:00,802 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:06:00,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 19:06:00,804 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:06:00,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:06:00,805 INFO L82 PathProgramCache]: Analyzing trace with hash 775751344, now seen corresponding path program 1 times [2021-03-11 19:06:00,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:06:00,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640523248] [2021-03-11 19:06:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:06:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:06:00,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:00,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:06:00,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:00,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:06:00,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:00,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:06:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:06:00,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640523248] [2021-03-11 19:06:00,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:06:00,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:06:00,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451810917] [2021-03-11 19:06:00,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:06:00,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:06:00,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:06:00,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:06:00,926 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 162 [2021-03-11 19:06:00,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 76 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:00,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:06:00,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 162 [2021-03-11 19:06:00,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:06:01,272 INFO L129 PetriNetUnfolder]: 977/3648 cut-off events. [2021-03-11 19:06:01,272 INFO L130 PetriNetUnfolder]: For 768/992 co-relation queries the response was YES. [2021-03-11 19:06:01,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5772 conditions, 3648 events. 977/3648 cut-off events. For 768/992 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 39998 event pairs, 56 based on Foata normal form. 145/3586 useless extension candidates. Maximal degree in co-relation 4137. Up to 466 conditions per place. [2021-03-11 19:06:01,307 INFO L132 encePairwiseOnDemand]: 155/162 looper letters, 20 selfloop transitions, 9 changer transitions 0/94 dead transitions. [2021-03-11 19:06:01,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 94 transitions, 402 flow [2021-03-11 19:06:01,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 19:06:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 19:06:01,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 533 transitions. [2021-03-11 19:06:01,309 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8225308641975309 [2021-03-11 19:06:01,309 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 533 transitions. [2021-03-11 19:06:01,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 533 transitions. [2021-03-11 19:06:01,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:06:01,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 533 transitions. [2021-03-11 19:06:01,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,313 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,313 INFO L185 Difference]: Start difference. First operand has 58 places, 76 transitions, 288 flow. Second operand 4 states and 533 transitions. [2021-03-11 19:06:01,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 94 transitions, 402 flow [2021-03-11 19:06:01,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 94 transitions, 402 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 19:06:01,323 INFO L241 Difference]: Finished difference. Result has 64 places, 84 transitions, 356 flow [2021-03-11 19:06:01,323 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=64, PETRI_TRANSITIONS=84} [2021-03-11 19:06:01,324 INFO L335 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2021-03-11 19:06:01,324 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 84 transitions, 356 flow [2021-03-11 19:06:01,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,324 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:06:01,324 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:06:01,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 19:06:01,324 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:06:01,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:06:01,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1404847252, now seen corresponding path program 2 times [2021-03-11 19:06:01,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:06:01,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359944910] [2021-03-11 19:06:01,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:06:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:06:01,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:01,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:06:01,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:01,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:06:01,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:01,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:06:01,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:06:01,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359944910] [2021-03-11 19:06:01,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:06:01,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:06:01,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542411890] [2021-03-11 19:06:01,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:06:01,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:06:01,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:06:01,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:06:01,402 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2021-03-11 19:06:01,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 84 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:06:01,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2021-03-11 19:06:01,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:06:01,554 INFO L129 PetriNetUnfolder]: 389/1665 cut-off events. [2021-03-11 19:06:01,554 INFO L130 PetriNetUnfolder]: For 493/560 co-relation queries the response was YES. [2021-03-11 19:06:01,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2539 conditions, 1665 events. 389/1665 cut-off events. For 493/560 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 16075 event pairs, 2 based on Foata normal form. 50/1622 useless extension candidates. Maximal degree in co-relation 2087. Up to 270 conditions per place. [2021-03-11 19:06:01,567 INFO L132 encePairwiseOnDemand]: 156/162 looper letters, 5 selfloop transitions, 6 changer transitions 0/83 dead transitions. [2021-03-11 19:06:01,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 83 transitions, 374 flow [2021-03-11 19:06:01,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:06:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:06:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2021-03-11 19:06:01,570 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8251028806584362 [2021-03-11 19:06:01,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2021-03-11 19:06:01,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2021-03-11 19:06:01,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:06:01,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2021-03-11 19:06:01,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,573 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,573 INFO L185 Difference]: Start difference. First operand has 64 places, 84 transitions, 356 flow. Second operand 3 states and 401 transitions. [2021-03-11 19:06:01,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 83 transitions, 374 flow [2021-03-11 19:06:01,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 83 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 19:06:01,579 INFO L241 Difference]: Finished difference. Result has 67 places, 83 transitions, 374 flow [2021-03-11 19:06:01,579 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=67, PETRI_TRANSITIONS=83} [2021-03-11 19:06:01,580 INFO L335 CegarLoopForPetriNet]: 53 programPoint places, 14 predicate places. [2021-03-11 19:06:01,580 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 83 transitions, 374 flow [2021-03-11 19:06:01,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,581 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:06:01,582 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:06:01,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 19:06:01,582 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:06:01,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:06:01,582 INFO L82 PathProgramCache]: Analyzing trace with hash -366761627, now seen corresponding path program 1 times [2021-03-11 19:06:01,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:06:01,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932850719] [2021-03-11 19:06:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:06:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:06:01,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:01,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:06:01,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:01,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:01,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:01,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:01,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:01,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:06:01,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932850719] [2021-03-11 19:06:01,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:06:01,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:06:01,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210647663] [2021-03-11 19:06:01,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 19:06:01,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:06:01,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 19:06:01,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 19:06:01,680 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 162 [2021-03-11 19:06:01,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 83 transitions, 374 flow. Second operand has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:01,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:06:01,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 162 [2021-03-11 19:06:01,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:06:02,163 INFO L129 PetriNetUnfolder]: 895/3215 cut-off events. [2021-03-11 19:06:02,164 INFO L130 PetriNetUnfolder]: For 2087/2129 co-relation queries the response was YES. [2021-03-11 19:06:02,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6191 conditions, 3215 events. 895/3215 cut-off events. For 2087/2129 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 33064 event pairs, 71 based on Foata normal form. 0/3088 useless extension candidates. Maximal degree in co-relation 5261. Up to 466 conditions per place. [2021-03-11 19:06:02,191 INFO L132 encePairwiseOnDemand]: 153/162 looper letters, 72 selfloop transitions, 47 changer transitions 0/158 dead transitions. [2021-03-11 19:06:02,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 158 transitions, 974 flow [2021-03-11 19:06:02,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 19:06:02,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 19:06:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1109 transitions. [2021-03-11 19:06:02,194 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7606310013717421 [2021-03-11 19:06:02,194 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1109 transitions. [2021-03-11 19:06:02,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1109 transitions. [2021-03-11 19:06:02,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:06:02,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1109 transitions. [2021-03-11 19:06:02,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 123.22222222222223) internal successors, (1109), 9 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,201 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,201 INFO L185 Difference]: Start difference. First operand has 67 places, 83 transitions, 374 flow. Second operand 9 states and 1109 transitions. [2021-03-11 19:06:02,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 158 transitions, 974 flow [2021-03-11 19:06:02,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 158 transitions, 962 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:06:02,212 INFO L241 Difference]: Finished difference. Result has 79 places, 122 transitions, 733 flow [2021-03-11 19:06:02,213 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=733, PETRI_PLACES=79, PETRI_TRANSITIONS=122} [2021-03-11 19:06:02,213 INFO L335 CegarLoopForPetriNet]: 53 programPoint places, 26 predicate places. [2021-03-11 19:06:02,213 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 122 transitions, 733 flow [2021-03-11 19:06:02,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,215 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:06:02,215 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:06:02,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 19:06:02,215 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:06:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:06:02,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1134374909, now seen corresponding path program 1 times [2021-03-11 19:06:02,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:06:02,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597279332] [2021-03-11 19:06:02,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:06:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:06:02,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:02,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:06:02,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:02,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:02,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:02,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:02,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:02,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:06:02,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597279332] [2021-03-11 19:06:02,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:06:02,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:06:02,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409965011] [2021-03-11 19:06:02,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 19:06:02,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:06:02,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 19:06:02,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 19:06:02,285 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 162 [2021-03-11 19:06:02,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 122 transitions, 733 flow. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:06:02,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 162 [2021-03-11 19:06:02,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:06:02,676 INFO L129 PetriNetUnfolder]: 882/3247 cut-off events. [2021-03-11 19:06:02,676 INFO L130 PetriNetUnfolder]: For 2631/2692 co-relation queries the response was YES. [2021-03-11 19:06:02,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6778 conditions, 3247 events. 882/3247 cut-off events. For 2631/2692 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 33711 event pairs, 47 based on Foata normal form. 36/3188 useless extension candidates. Maximal degree in co-relation 6205. Up to 474 conditions per place. [2021-03-11 19:06:02,708 INFO L132 encePairwiseOnDemand]: 152/162 looper letters, 64 selfloop transitions, 66 changer transitions 0/168 dead transitions. [2021-03-11 19:06:02,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 168 transitions, 1255 flow [2021-03-11 19:06:02,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 19:06:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 19:06:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1110 transitions. [2021-03-11 19:06:02,712 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7613168724279835 [2021-03-11 19:06:02,712 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1110 transitions. [2021-03-11 19:06:02,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1110 transitions. [2021-03-11 19:06:02,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:06:02,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1110 transitions. [2021-03-11 19:06:02,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 123.33333333333333) internal successors, (1110), 9 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,717 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,717 INFO L185 Difference]: Start difference. First operand has 79 places, 122 transitions, 733 flow. Second operand 9 states and 1110 transitions. [2021-03-11 19:06:02,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 168 transitions, 1255 flow [2021-03-11 19:06:02,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 168 transitions, 1253 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-11 19:06:02,732 INFO L241 Difference]: Finished difference. Result has 90 places, 140 transitions, 1038 flow [2021-03-11 19:06:02,733 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1038, PETRI_PLACES=90, PETRI_TRANSITIONS=140} [2021-03-11 19:06:02,733 INFO L335 CegarLoopForPetriNet]: 53 programPoint places, 37 predicate places. [2021-03-11 19:06:02,733 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 140 transitions, 1038 flow [2021-03-11 19:06:02,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,733 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:06:02,733 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:06:02,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 19:06:02,734 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:06:02,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:06:02,734 INFO L82 PathProgramCache]: Analyzing trace with hash -435192179, now seen corresponding path program 1 times [2021-03-11 19:06:02,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:06:02,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328609528] [2021-03-11 19:06:02,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:06:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:06:02,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:02,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:06:02,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:02,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:02,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:02,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:02,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 19:06:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:06:02,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328609528] [2021-03-11 19:06:02,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:06:02,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:06:02,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143353417] [2021-03-11 19:06:02,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 19:06:02,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:06:02,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 19:06:02,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 19:06:02,804 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 162 [2021-03-11 19:06:02,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 140 transitions, 1038 flow. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:02,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:06:02,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 162 [2021-03-11 19:06:02,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:06:03,237 INFO L129 PetriNetUnfolder]: 925/3258 cut-off events. [2021-03-11 19:06:03,237 INFO L130 PetriNetUnfolder]: For 3946/4046 co-relation queries the response was YES. [2021-03-11 19:06:03,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7346 conditions, 3258 events. 925/3258 cut-off events. For 3946/4046 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 33351 event pairs, 30 based on Foata normal form. 56/3202 useless extension candidates. Maximal degree in co-relation 6650. Up to 474 conditions per place. [2021-03-11 19:06:03,267 INFO L132 encePairwiseOnDemand]: 153/162 looper letters, 86 selfloop transitions, 61 changer transitions 0/182 dead transitions. [2021-03-11 19:06:03,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 182 transitions, 1602 flow [2021-03-11 19:06:03,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 19:06:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 19:06:03,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 867 transitions. [2021-03-11 19:06:03,270 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7645502645502645 [2021-03-11 19:06:03,270 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 867 transitions. [2021-03-11 19:06:03,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 867 transitions. [2021-03-11 19:06:03,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:06:03,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 867 transitions. [2021-03-11 19:06:03,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,275 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,275 INFO L185 Difference]: Start difference. First operand has 90 places, 140 transitions, 1038 flow. Second operand 7 states and 867 transitions. [2021-03-11 19:06:03,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 182 transitions, 1602 flow [2021-03-11 19:06:03,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 182 transitions, 1602 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 19:06:03,299 INFO L241 Difference]: Finished difference. Result has 98 places, 153 transitions, 1291 flow [2021-03-11 19:06:03,299 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1291, PETRI_PLACES=98, PETRI_TRANSITIONS=153} [2021-03-11 19:06:03,300 INFO L335 CegarLoopForPetriNet]: 53 programPoint places, 45 predicate places. [2021-03-11 19:06:03,300 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 153 transitions, 1291 flow [2021-03-11 19:06:03,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,300 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:06:03,300 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:06:03,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 19:06:03,300 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:06:03,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:06:03,301 INFO L82 PathProgramCache]: Analyzing trace with hash 617444837, now seen corresponding path program 1 times [2021-03-11 19:06:03,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:06:03,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451243099] [2021-03-11 19:06:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:06:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:06:03,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:03,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:06:03,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:03,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:06:03,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:03,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:06:03,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:03,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:06:03,368 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-11 19:06:03,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 19:06:03,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:06:03,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:06:03,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:06:03,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451243099] [2021-03-11 19:06:03,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:06:03,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 19:06:03,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466014831] [2021-03-11 19:06:03,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 19:06:03,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:06:03,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 19:06:03,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-11 19:06:03,380 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 162 [2021-03-11 19:06:03,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 153 transitions, 1291 flow. Second operand has 7 states, 7 states have (on average 115.28571428571429) internal successors, (807), 7 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:06:03,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 162 [2021-03-11 19:06:03,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:06:03,895 INFO L129 PetriNetUnfolder]: 1038/4155 cut-off events. [2021-03-11 19:06:03,895 INFO L130 PetriNetUnfolder]: For 4364/4469 co-relation queries the response was YES. [2021-03-11 19:06:03,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8245 conditions, 4155 events. 1038/4155 cut-off events. For 4364/4469 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 47974 event pairs, 9 based on Foata normal form. 64/4091 useless extension candidates. Maximal degree in co-relation 7412. Up to 712 conditions per place. [2021-03-11 19:06:03,925 INFO L132 encePairwiseOnDemand]: 152/162 looper letters, 50 selfloop transitions, 19 changer transitions 33/205 dead transitions. [2021-03-11 19:06:03,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 205 transitions, 1821 flow [2021-03-11 19:06:03,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 19:06:03,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 19:06:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1319 transitions. [2021-03-11 19:06:03,929 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7401795735129069 [2021-03-11 19:06:03,929 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1319 transitions. [2021-03-11 19:06:03,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1319 transitions. [2021-03-11 19:06:03,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:06:03,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1319 transitions. [2021-03-11 19:06:03,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 119.9090909090909) internal successors, (1319), 11 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 162.0) internal successors, (1944), 12 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,936 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 162.0) internal successors, (1944), 12 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,936 INFO L185 Difference]: Start difference. First operand has 98 places, 153 transitions, 1291 flow. Second operand 11 states and 1319 transitions. [2021-03-11 19:06:03,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 205 transitions, 1821 flow [2021-03-11 19:06:03,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 205 transitions, 1777 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-11 19:06:03,954 INFO L241 Difference]: Finished difference. Result has 112 places, 148 transitions, 1232 flow [2021-03-11 19:06:03,955 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1208, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1232, PETRI_PLACES=112, PETRI_TRANSITIONS=148} [2021-03-11 19:06:03,955 INFO L335 CegarLoopForPetriNet]: 53 programPoint places, 59 predicate places. [2021-03-11 19:06:03,955 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 148 transitions, 1232 flow [2021-03-11 19:06:03,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 115.28571428571429) internal successors, (807), 7 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:06:03,955 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:06:03,956 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:06:03,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 19:06:03,956 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 19:06:03,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:06:03,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1004138305, now seen corresponding path program 2 times [2021-03-11 19:06:03,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:06:03,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836014114] [2021-03-11 19:06:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:06:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:06:03,971 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:06:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 19:06:03,985 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 19:06:04,015 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 19:06:04,016 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 19:06:04,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 19:06:04,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 07:06:04 BasicIcfg [2021-03-11 19:06:04,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 19:06:04,073 INFO L168 Benchmark]: Toolchain (without parser) took 8888.31 ms. Allocated memory was 255.9 MB in the beginning and 557.8 MB in the end (delta: 302.0 MB). Free memory was 233.7 MB in the beginning and 466.7 MB in the end (delta: -233.0 MB). Peak memory consumption was 68.4 MB. Max. memory is 16.0 GB. [2021-03-11 19:06:04,073 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.5 MB in the beginning and 237.4 MB in the end (delta: 85.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 19:06:04,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.20 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 233.2 MB in the beginning and 348.9 MB in the end (delta: -115.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 19:06:04,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.71 ms. Allocated memory is still 385.9 MB. Free memory was 348.4 MB in the beginning and 346.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 19:06:04,074 INFO L168 Benchmark]: Boogie Preprocessor took 17.94 ms. Allocated memory is still 385.9 MB. Free memory was 346.8 MB in the beginning and 345.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 19:06:04,074 INFO L168 Benchmark]: RCFGBuilder took 576.64 ms. Allocated memory is still 385.9 MB. Free memory was 345.2 MB in the beginning and 315.3 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-11 19:06:04,075 INFO L168 Benchmark]: TraceAbstraction took 7736.65 ms. Allocated memory was 385.9 MB in the beginning and 557.8 MB in the end (delta: 172.0 MB). Free memory was 314.8 MB in the beginning and 466.7 MB in the end (delta: -151.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.0 GB. [2021-03-11 19:06:04,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.5 MB in the beginning and 237.4 MB in the end (delta: 85.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 491.20 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 233.2 MB in the beginning and 348.9 MB in the end (delta: -115.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.71 ms. Allocated memory is still 385.9 MB. Free memory was 348.4 MB in the beginning and 346.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.94 ms. Allocated memory is still 385.9 MB. Free memory was 346.8 MB in the beginning and 345.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 576.64 ms. Allocated memory is still 385.9 MB. Free memory was 345.2 MB in the beginning and 315.3 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7736.65 ms. Allocated memory was 385.9 MB in the beginning and 557.8 MB in the end (delta: 172.0 MB). Free memory was 314.8 MB in the beginning and 466.7 MB in the end (delta: -151.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3355.7ms, 92 PlacesBefore, 53 PlacesAfterwards, 90 TransitionsBefore, 50 TransitionsAfterwards, 2994 CoEnabledTransitionPairs, 8 FixpointIterations, 17 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 52 TotalNumberOfCompositions, 21908 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15915, positive: 15543, positive conditional: 0, positive unconditional: 15543, negative: 372, negative conditional: 0, negative unconditional: 372, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2548, positive: 2492, positive conditional: 0, positive unconditional: 2492, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2548, positive: 2465, positive conditional: 0, positive unconditional: 2465, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 83, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 295, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 229, negative conditional: 0, negative unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15915, positive: 13051, positive conditional: 0, positive unconditional: 13051, negative: 316, negative conditional: 0, negative unconditional: 316, unknown: 2548, unknown conditional: 0, unknown unconditional: 2548] , Statistics on independence cache: Total cache size (in pairs): 945, Positive cache size: 914, Positive conditional cache size: 0, Positive unconditional cache size: 914, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; [L748] 0 pthread_t t1, t2, t3, t4; [L749] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L750] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 2 int l; [L725] CALL 2 __VERIFIER_atomic_take_read_lock() [L710] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L710] RET 2 assume_abort_if_not(w==0) [L711] 2 r = r+1 [L725] RET 2 __VERIFIER_atomic_take_read_lock() [L727] 2 l = x VAL [r=1, w=0, x=0, y=0] [L730] 2 y = l VAL [r=1, w=0, x=0, y=0] [L733] 2 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 2 int lx = x; [L738] COND FALSE 2 !(!(ly == lx)) VAL [r=1, w=0, x=0, y=0] [L740] 2 l = r-1 VAL [r=1, w=0, x=0, y=0] [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=1, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=1, w=0, x=0, y=0] [L724] 4 int l; [L725] CALL 4 __VERIFIER_atomic_take_read_lock() [L710] CALL 4 assume_abort_if_not(w==0) [L3] COND FALSE 4 !(!cond) [L710] RET 4 assume_abort_if_not(w==0) [L711] 4 r = r+1 [L725] RET 4 __VERIFIER_atomic_take_read_lock() [L727] 4 l = x VAL [r=2, w=0, x=0, y=0] [L730] 4 y = l VAL [r=2, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=2, w=0, x=0, y=0] [L743] 2 r = l [L745] 2 return 0; [L714] CALL 1 __VERIFIER_atomic_take_write_lock() [L706] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L706] RET 1 assume_abort_if_not(w==0 && r==0) [L707] 1 w = 1 [L714] RET 1 __VERIFIER_atomic_take_write_lock() [L716] 1 x = 3 VAL [r=0, w=1, x=3, y=0] [L736] 4 int lx = x; [L738] COND TRUE 4 !(ly == lx) [L738] 4 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 7481.8ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3230.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3435.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 125 SDtfs, 212 SDslu, 96 SDs, 0 SdLazy, 463 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 405.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 340.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1291occurred in iteration=6, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.0ms SsaConstructionTime, 132.0ms SatisfiabilityAnalysisTime, 420.4ms InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 incorrect! Received shutdown request...