/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 09:44:42,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 09:44:42,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 09:44:42,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 09:44:42,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 09:44:42,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 09:44:42,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 09:44:42,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 09:44:42,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 09:44:42,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 09:44:42,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 09:44:42,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 09:44:42,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 09:44:42,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 09:44:42,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 09:44:42,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 09:44:42,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 09:44:42,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 09:44:42,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 09:44:42,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 09:44:42,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 09:44:42,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 09:44:42,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 09:44:42,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 09:44:42,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 09:44:42,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 09:44:42,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 09:44:42,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 09:44:42,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 09:44:42,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 09:44:42,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 09:44:42,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 09:44:42,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 09:44:42,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 09:44:42,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 09:44:42,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 09:44:42,806 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-VariableLbe.epf [2021-03-24 09:44:42,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 09:44:42,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 09:44:42,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 09:44:42,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 09:44:42,826 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 09:44:42,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 09:44:42,826 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 09:44:42,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 09:44:42,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 09:44:42,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 09:44:42,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 09:44:42,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 09:44:42,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 09:44:42,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 09:44:42,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 09:44:42,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 09:44:42,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 09:44:42,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 09:44:42,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 09:44:42,828 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 09:44:42,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 09:44:42,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 09:44:43,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 09:44:43,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 09:44:43,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 09:44:43,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 09:44:43,041 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 09:44:43,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-24 09:44:43,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2704f066/4e884ac4a9d94c9bb86899eabf9138e1/FLAG7716b0f56 [2021-03-24 09:44:43,484 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 09:44:43,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-24 09:44:43,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2704f066/4e884ac4a9d94c9bb86899eabf9138e1/FLAG7716b0f56 [2021-03-24 09:44:43,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2704f066/4e884ac4a9d94c9bb86899eabf9138e1 [2021-03-24 09:44:43,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 09:44:43,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 09:44:43,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 09:44:43,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 09:44:43,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 09:44:43,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 09:44:43" (1/1) ... [2021-03-24 09:44:43,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44eb1e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:43, skipping insertion in model container [2021-03-24 09:44:43,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 09:44:43" (1/1) ... [2021-03-24 09:44:43,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 09:44:43,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 09:44:43,996 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 09:44:44,095 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/lamport.i[32156,32169] [2021-03-24 09:44:44,099 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/lamport.i[34083,34096] [2021-03-24 09:44:44,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 09:44:44,106 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 09:44:44,118 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 09:44:44,130 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/lamport.i[32156,32169] [2021-03-24 09:44:44,133 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/lamport.i[34083,34096] [2021-03-24 09:44:44,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 09:44:44,180 INFO L208 MainTranslator]: Completed translation [2021-03-24 09:44:44,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44 WrapperNode [2021-03-24 09:44:44,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 09:44:44,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 09:44:44,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 09:44:44,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 09:44:44,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 09:44:44,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 09:44:44,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 09:44:44,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 09:44:44,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (1/1) ... [2021-03-24 09:44:44,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 09:44:44,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 09:44:44,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 09:44:44,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 09:44:44,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (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 [2021-03-24 09:44:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 09:44:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-24 09:44:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-24 09:44:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-24 09:44:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-24 09:44:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 09:44:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 09:44:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 09:44:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 09:44:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 09:44:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 09:44:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 09:44:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 09:44:44,271 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 09:44:44,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 09:44:44,570 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-03-24 09:44:44,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 09:44:44 BoogieIcfgContainer [2021-03-24 09:44:44,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 09:44:44,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 09:44:44,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 09:44:44,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 09:44:44,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 09:44:43" (1/3) ... [2021-03-24 09:44:44,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79125feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 09:44:44, skipping insertion in model container [2021-03-24 09:44:44,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 09:44:44" (2/3) ... [2021-03-24 09:44:44,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79125feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 09:44:44, skipping insertion in model container [2021-03-24 09:44:44,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 09:44:44" (3/3) ... [2021-03-24 09:44:44,576 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-03-24 09:44:44,580 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 09:44:44,583 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 09:44:44,583 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 09:44:44,602 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,605 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,622 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,622 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 09:44:44,627 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-24 09:44:44,640 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-24 09:44:44,661 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 09:44:44,661 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 09:44:44,661 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 09:44:44,661 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 09:44:44,662 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 09:44:44,662 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 09:44:44,662 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 09:44:44,662 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 09:44:44,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 125 transitions, 272 flow [2021-03-24 09:44:44,701 INFO L129 PetriNetUnfolder]: 25/125 cut-off events. [2021-03-24 09:44:44,701 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 09:44:44,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 125 events. 25/125 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 280 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2021-03-24 09:44:44,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 125 transitions, 272 flow [2021-03-24 09:44:44,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 113 transitions, 238 flow [2021-03-24 09:44:44,709 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 09:44:44,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 113 transitions, 238 flow [2021-03-24 09:44:44,717 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 113 transitions, 238 flow [2021-03-24 09:44:44,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 113 transitions, 238 flow [2021-03-24 09:44:44,735 INFO L129 PetriNetUnfolder]: 24/115 cut-off events. [2021-03-24 09:44:44,735 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 09:44:44,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 115 events. 24/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 276 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 97. Up to 5 conditions per place. [2021-03-24 09:44:44,744 INFO L142 LiptonReduction]: Number of co-enabled transitions 4816 [2021-03-24 09:44:45,875 INFO L154 LiptonReduction]: Checked pairs total: 3070 [2021-03-24 09:44:45,876 INFO L156 LiptonReduction]: Total number of compositions: 46 [2021-03-24 09:44:45,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1169 [2021-03-24 09:44:45,882 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-03-24 09:44:45,882 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 09:44:45,882 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:45,883 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:44:45,883 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:45,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:45,886 INFO L82 PathProgramCache]: Analyzing trace with hash -2103324470, now seen corresponding path program 1 times [2021-03-24 09:44:45,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:45,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36615128] [2021-03-24 09:44:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:45,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:45,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:45,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:45,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:45,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36615128] [2021-03-24 09:44:45,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:45,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 09:44:45,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204823694] [2021-03-24 09:44:45,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-24 09:44:45,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:45,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-24 09:44:45,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-24 09:44:45,996 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 171 [2021-03-24 09:44:45,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 78 transitions, 168 flow. Second operand has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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) [2021-03-24 09:44:45,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:45,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 171 [2021-03-24 09:44:45,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:46,007 INFO L129 PetriNetUnfolder]: 12/70 cut-off events. [2021-03-24 09:44:46,007 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 09:44:46,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 12/70 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 7/62 useless extension candidates. Maximal degree in co-relation 76. Up to 3 conditions per place. [2021-03-24 09:44:46,013 INFO L132 encePairwiseOnDemand]: 164/171 looper letters, 0 selfloop transitions, 0 changer transitions 0/69 dead transitions. [2021-03-24 09:44:46,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 69 transitions, 150 flow [2021-03-24 09:44:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-24 09:44:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-24 09:44:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 313 transitions. [2021-03-24 09:44:46,024 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9152046783625731 [2021-03-24 09:44:46,024 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 313 transitions. [2021-03-24 09:44:46,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 313 transitions. [2021-03-24 09:44:46,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:46,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 313 transitions. [2021-03-24 09:44:46,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 156.5) internal successors, (313), 2 states have internal predecessors, (313), 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) [2021-03-24 09:44:46,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2021-03-24 09:44:46,039 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2021-03-24 09:44:46,040 INFO L185 Difference]: Start difference. First operand has 65 places, 78 transitions, 168 flow. Second operand 2 states and 313 transitions. [2021-03-24 09:44:46,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 69 transitions, 150 flow [2021-03-24 09:44:46,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 69 transitions, 142 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 09:44:46,044 INFO L241 Difference]: Finished difference. Result has 60 places, 69 transitions, 142 flow [2021-03-24 09:44:46,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=60, PETRI_TRANSITIONS=69} [2021-03-24 09:44:46,045 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -5 predicate places. [2021-03-24 09:44:46,045 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 69 transitions, 142 flow [2021-03-24 09:44:46,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 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) [2021-03-24 09:44:46,046 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:46,046 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:44:46,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 09:44:46,046 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:46,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:46,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1344150679, now seen corresponding path program 1 times [2021-03-24 09:44:46,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:46,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217349965] [2021-03-24 09:44:46,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:46,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:46,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217349965] [2021-03-24 09:44:46,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:46,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 09:44:46,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488365770] [2021-03-24 09:44:46,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 09:44:46,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:46,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 09:44:46,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 09:44:46,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 171 [2021-03-24 09:44:46,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 69 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2021-03-24 09:44:46,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:46,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 171 [2021-03-24 09:44:46,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:46,122 INFO L129 PetriNetUnfolder]: 26/120 cut-off events. [2021-03-24 09:44:46,122 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 09:44:46,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 120 events. 26/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 375 event pairs, 4 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 162. Up to 26 conditions per place. [2021-03-24 09:44:46,123 INFO L132 encePairwiseOnDemand]: 163/171 looper letters, 9 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2021-03-24 09:44:46,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 73 transitions, 178 flow [2021-03-24 09:44:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 09:44:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 09:44:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2021-03-24 09:44:46,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.834307992202729 [2021-03-24 09:44:46,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2021-03-24 09:44:46,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2021-03-24 09:44:46,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:46,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2021-03-24 09:44:46,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2021-03-24 09:44:46,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-03-24 09:44:46,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-03-24 09:44:46,127 INFO L185 Difference]: Start difference. First operand has 60 places, 69 transitions, 142 flow. Second operand 3 states and 428 transitions. [2021-03-24 09:44:46,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 73 transitions, 178 flow [2021-03-24 09:44:46,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 73 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 09:44:46,129 INFO L241 Difference]: Finished difference. Result has 64 places, 71 transitions, 176 flow [2021-03-24 09:44:46,129 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=64, PETRI_TRANSITIONS=71} [2021-03-24 09:44:46,129 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -1 predicate places. [2021-03-24 09:44:46,129 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 71 transitions, 176 flow [2021-03-24 09:44:46,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2021-03-24 09:44:46,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:46,130 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:44:46,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 09:44:46,130 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:46,130 INFO L82 PathProgramCache]: Analyzing trace with hash -704879326, now seen corresponding path program 1 times [2021-03-24 09:44:46,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:46,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725279232] [2021-03-24 09:44:46,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:46,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 09:44:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:46,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725279232] [2021-03-24 09:44:46,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:46,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 09:44:46,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282614234] [2021-03-24 09:44:46,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 09:44:46,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:46,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 09:44:46,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 09:44:46,156 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 171 [2021-03-24 09:44:46,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 71 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2021-03-24 09:44:46,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:46,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 171 [2021-03-24 09:44:46,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:46,174 INFO L129 PetriNetUnfolder]: 19/104 cut-off events. [2021-03-24 09:44:46,174 INFO L130 PetriNetUnfolder]: For 28/36 co-relation queries the response was YES. [2021-03-24 09:44:46,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 104 events. 19/104 cut-off events. For 28/36 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 294 event pairs, 3 based on Foata normal form. 9/99 useless extension candidates. Maximal degree in co-relation 167. Up to 16 conditions per place. [2021-03-24 09:44:46,175 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 7 selfloop transitions, 4 changer transitions 1/71 dead transitions. [2021-03-24 09:44:46,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 71 transitions, 200 flow [2021-03-24 09:44:46,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 09:44:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 09:44:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 425 transitions. [2021-03-24 09:44:46,177 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8284600389863548 [2021-03-24 09:44:46,177 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 425 transitions. [2021-03-24 09:44:46,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 425 transitions. [2021-03-24 09:44:46,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:46,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 425 transitions. [2021-03-24 09:44:46,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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) [2021-03-24 09:44:46,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-03-24 09:44:46,179 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-03-24 09:44:46,179 INFO L185 Difference]: Start difference. First operand has 64 places, 71 transitions, 176 flow. Second operand 3 states and 425 transitions. [2021-03-24 09:44:46,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 71 transitions, 200 flow [2021-03-24 09:44:46,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 71 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 09:44:46,181 INFO L241 Difference]: Finished difference. Result has 65 places, 70 transitions, 178 flow [2021-03-24 09:44:46,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=65, PETRI_TRANSITIONS=70} [2021-03-24 09:44:46,181 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 0 predicate places. [2021-03-24 09:44:46,181 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 70 transitions, 178 flow [2021-03-24 09:44:46,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2021-03-24 09:44:46,182 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:46,182 INFO L263 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, 1, 1, 1, 1, 1] [2021-03-24 09:44:46,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 09:44:46,182 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:46,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:46,182 INFO L82 PathProgramCache]: Analyzing trace with hash -942353104, now seen corresponding path program 1 times [2021-03-24 09:44:46,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:46,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430771673] [2021-03-24 09:44:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:46,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:46,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430771673] [2021-03-24 09:44:46,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:46,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:44:46,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737374827] [2021-03-24 09:44:46,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 09:44:46,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:46,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 09:44:46,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 09:44:46,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 171 [2021-03-24 09:44:46,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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) [2021-03-24 09:44:46,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:46,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 171 [2021-03-24 09:44:46,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:46,378 INFO L129 PetriNetUnfolder]: 356/890 cut-off events. [2021-03-24 09:44:46,378 INFO L130 PetriNetUnfolder]: For 136/138 co-relation queries the response was YES. [2021-03-24 09:44:46,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 890 events. 356/890 cut-off events. For 136/138 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5056 event pairs, 42 based on Foata normal form. 6/835 useless extension candidates. Maximal degree in co-relation 1543. Up to 230 conditions per place. [2021-03-24 09:44:46,384 INFO L132 encePairwiseOnDemand]: 157/171 looper letters, 43 selfloop transitions, 5 changer transitions 19/113 dead transitions. [2021-03-24 09:44:46,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 113 transitions, 404 flow [2021-03-24 09:44:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 09:44:46,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 09:44:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 655 transitions. [2021-03-24 09:44:46,386 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7660818713450293 [2021-03-24 09:44:46,386 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 655 transitions. [2021-03-24 09:44:46,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 655 transitions. [2021-03-24 09:44:46,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:46,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 655 transitions. [2021-03-24 09:44:46,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-24 09:44:46,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:46,390 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:46,390 INFO L185 Difference]: Start difference. First operand has 65 places, 70 transitions, 178 flow. Second operand 5 states and 655 transitions. [2021-03-24 09:44:46,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 113 transitions, 404 flow [2021-03-24 09:44:46,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 113 transitions, 399 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 09:44:46,399 INFO L241 Difference]: Finished difference. Result has 71 places, 75 transitions, 250 flow [2021-03-24 09:44:46,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2021-03-24 09:44:46,400 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 6 predicate places. [2021-03-24 09:44:46,400 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 250 flow [2021-03-24 09:44:46,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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) [2021-03-24 09:44:46,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:46,401 INFO L263 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, 1, 1, 1, 1, 1] [2021-03-24 09:44:46,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 09:44:46,401 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:46,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:46,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1979890054, now seen corresponding path program 2 times [2021-03-24 09:44:46,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:46,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192399347] [2021-03-24 09:44:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:46,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:46,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192399347] [2021-03-24 09:44:46,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:46,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:44:46,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986985327] [2021-03-24 09:44:46,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 09:44:46,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:46,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 09:44:46,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 09:44:46,444 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 171 [2021-03-24 09:44:46,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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) [2021-03-24 09:44:46,445 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:46,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 171 [2021-03-24 09:44:46,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:46,560 INFO L129 PetriNetUnfolder]: 320/1200 cut-off events. [2021-03-24 09:44:46,560 INFO L130 PetriNetUnfolder]: For 319/338 co-relation queries the response was YES. [2021-03-24 09:44:46,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2125 conditions, 1200 events. 320/1200 cut-off events. For 319/338 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8191 event pairs, 27 based on Foata normal form. 17/1098 useless extension candidates. Maximal degree in co-relation 2116. Up to 185 conditions per place. [2021-03-24 09:44:46,567 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 19 selfloop transitions, 6 changer transitions 0/91 dead transitions. [2021-03-24 09:44:46,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 91 transitions, 338 flow [2021-03-24 09:44:46,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 09:44:46,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 09:44:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 724 transitions. [2021-03-24 09:44:46,568 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8467836257309942 [2021-03-24 09:44:46,568 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 724 transitions. [2021-03-24 09:44:46,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 724 transitions. [2021-03-24 09:44:46,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:46,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 724 transitions. [2021-03-24 09:44:46,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 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) [2021-03-24 09:44:46,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:46,572 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:46,572 INFO L185 Difference]: Start difference. First operand has 71 places, 75 transitions, 250 flow. Second operand 5 states and 724 transitions. [2021-03-24 09:44:46,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 91 transitions, 338 flow [2021-03-24 09:44:46,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 91 transitions, 322 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-24 09:44:46,576 INFO L241 Difference]: Finished difference. Result has 77 places, 81 transitions, 286 flow [2021-03-24 09:44:46,576 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=77, PETRI_TRANSITIONS=81} [2021-03-24 09:44:46,577 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 12 predicate places. [2021-03-24 09:44:46,577 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 81 transitions, 286 flow [2021-03-24 09:44:46,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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) [2021-03-24 09:44:46,577 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:46,577 INFO L263 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, 1, 1, 1, 1, 1] [2021-03-24 09:44:46,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 09:44:46,578 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:46,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:46,579 INFO L82 PathProgramCache]: Analyzing trace with hash 446946190, now seen corresponding path program 3 times [2021-03-24 09:44:46,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:46,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616430473] [2021-03-24 09:44:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:46,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:46,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616430473] [2021-03-24 09:44:46,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:46,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:44:46,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278208658] [2021-03-24 09:44:46,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 09:44:46,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:46,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 09:44:46,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 09:44:46,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 171 [2021-03-24 09:44:46,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 81 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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) [2021-03-24 09:44:46,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:46,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 171 [2021-03-24 09:44:46,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:46,840 INFO L129 PetriNetUnfolder]: 965/2742 cut-off events. [2021-03-24 09:44:46,840 INFO L130 PetriNetUnfolder]: For 1283/1342 co-relation queries the response was YES. [2021-03-24 09:44:46,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5922 conditions, 2742 events. 965/2742 cut-off events. For 1283/1342 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 20853 event pairs, 111 based on Foata normal form. 46/2614 useless extension candidates. Maximal degree in co-relation 5910. Up to 703 conditions per place. [2021-03-24 09:44:46,856 INFO L132 encePairwiseOnDemand]: 157/171 looper letters, 55 selfloop transitions, 16 changer transitions 2/124 dead transitions. [2021-03-24 09:44:46,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 124 transitions, 564 flow [2021-03-24 09:44:46,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 09:44:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 09:44:46,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 654 transitions. [2021-03-24 09:44:46,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7649122807017544 [2021-03-24 09:44:46,858 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 654 transitions. [2021-03-24 09:44:46,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 654 transitions. [2021-03-24 09:44:46,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:46,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 654 transitions. [2021-03-24 09:44:46,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 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) [2021-03-24 09:44:46,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:46,860 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:46,860 INFO L185 Difference]: Start difference. First operand has 77 places, 81 transitions, 286 flow. Second operand 5 states and 654 transitions. [2021-03-24 09:44:46,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 124 transitions, 564 flow [2021-03-24 09:44:46,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 124 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 09:44:46,865 INFO L241 Difference]: Finished difference. Result has 85 places, 94 transitions, 426 flow [2021-03-24 09:44:46,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=85, PETRI_TRANSITIONS=94} [2021-03-24 09:44:46,865 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 20 predicate places. [2021-03-24 09:44:46,865 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 94 transitions, 426 flow [2021-03-24 09:44:46,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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) [2021-03-24 09:44:46,865 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:46,865 INFO L263 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, 1, 1, 1, 1, 1] [2021-03-24 09:44:46,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 09:44:46,866 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:46,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:46,866 INFO L82 PathProgramCache]: Analyzing trace with hash -624472024, now seen corresponding path program 4 times [2021-03-24 09:44:46,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:46,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105242867] [2021-03-24 09:44:46,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:46,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:46,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:46,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:46,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105242867] [2021-03-24 09:44:46,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:46,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:44:46,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192781938] [2021-03-24 09:44:46,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 09:44:46,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:46,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 09:44:46,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 09:44:46,885 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 171 [2021-03-24 09:44:46,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 94 transitions, 426 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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) [2021-03-24 09:44:46,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:46,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 171 [2021-03-24 09:44:46,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:47,130 INFO L129 PetriNetUnfolder]: 662/2640 cut-off events. [2021-03-24 09:44:47,130 INFO L130 PetriNetUnfolder]: For 1997/2096 co-relation queries the response was YES. [2021-03-24 09:44:47,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5943 conditions, 2640 events. 662/2640 cut-off events. For 1997/2096 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 21713 event pairs, 53 based on Foata normal form. 64/2668 useless extension candidates. Maximal degree in co-relation 5927. Up to 428 conditions per place. [2021-03-24 09:44:47,144 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 23 selfloop transitions, 11 changer transitions 0/114 dead transitions. [2021-03-24 09:44:47,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 114 transitions, 591 flow [2021-03-24 09:44:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 09:44:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 09:44:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 725 transitions. [2021-03-24 09:44:47,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.847953216374269 [2021-03-24 09:44:47,145 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 725 transitions. [2021-03-24 09:44:47,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 725 transitions. [2021-03-24 09:44:47,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:47,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 725 transitions. [2021-03-24 09:44:47,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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) [2021-03-24 09:44:47,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:47,148 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:47,148 INFO L185 Difference]: Start difference. First operand has 85 places, 94 transitions, 426 flow. Second operand 5 states and 725 transitions. [2021-03-24 09:44:47,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 114 transitions, 591 flow [2021-03-24 09:44:47,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 114 transitions, 591 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-24 09:44:47,153 INFO L241 Difference]: Finished difference. Result has 93 places, 102 transitions, 520 flow [2021-03-24 09:44:47,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=520, PETRI_PLACES=93, PETRI_TRANSITIONS=102} [2021-03-24 09:44:47,153 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 28 predicate places. [2021-03-24 09:44:47,153 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 102 transitions, 520 flow [2021-03-24 09:44:47,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 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) [2021-03-24 09:44:47,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:47,153 INFO L263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:44:47,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 09:44:47,154 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:47,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:47,154 INFO L82 PathProgramCache]: Analyzing trace with hash -50717259, now seen corresponding path program 1 times [2021-03-24 09:44:47,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:47,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605674350] [2021-03-24 09:44:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:47,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:47,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:47,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:47,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:47,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:47,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 09:44:47,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:47,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:47,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:47,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605674350] [2021-03-24 09:44:47,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:47,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:44:47,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071974526] [2021-03-24 09:44:47,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 09:44:47,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:47,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 09:44:47,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 09:44:47,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 171 [2021-03-24 09:44:47,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 102 transitions, 520 flow. Second operand has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 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) [2021-03-24 09:44:47,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:47,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 171 [2021-03-24 09:44:47,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:47,380 INFO L129 PetriNetUnfolder]: 532/2235 cut-off events. [2021-03-24 09:44:47,380 INFO L130 PetriNetUnfolder]: For 1584/1658 co-relation queries the response was YES. [2021-03-24 09:44:47,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5096 conditions, 2235 events. 532/2235 cut-off events. For 1584/1658 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 18584 event pairs, 52 based on Foata normal form. 77/2279 useless extension candidates. Maximal degree in co-relation 5076. Up to 344 conditions per place. [2021-03-24 09:44:47,393 INFO L132 encePairwiseOnDemand]: 164/171 looper letters, 10 selfloop transitions, 10 changer transitions 5/112 dead transitions. [2021-03-24 09:44:47,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 112 transitions, 582 flow [2021-03-24 09:44:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 09:44:47,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 09:44:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 707 transitions. [2021-03-24 09:44:47,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8269005847953217 [2021-03-24 09:44:47,395 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 707 transitions. [2021-03-24 09:44:47,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 707 transitions. [2021-03-24 09:44:47,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:47,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 707 transitions. [2021-03-24 09:44:47,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.4) internal successors, (707), 5 states have internal predecessors, (707), 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) [2021-03-24 09:44:47,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:47,397 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:47,397 INFO L185 Difference]: Start difference. First operand has 93 places, 102 transitions, 520 flow. Second operand 5 states and 707 transitions. [2021-03-24 09:44:47,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 112 transitions, 582 flow [2021-03-24 09:44:47,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 578 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-24 09:44:47,404 INFO L241 Difference]: Finished difference. Result has 100 places, 104 transitions, 553 flow [2021-03-24 09:44:47,404 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=553, PETRI_PLACES=100, PETRI_TRANSITIONS=104} [2021-03-24 09:44:47,404 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 35 predicate places. [2021-03-24 09:44:47,404 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 104 transitions, 553 flow [2021-03-24 09:44:47,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 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) [2021-03-24 09:44:47,405 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 09:44:47,405 INFO L263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 09:44:47,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 09:44:47,405 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 09:44:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 09:44:47,405 INFO L82 PathProgramCache]: Analyzing trace with hash 660410867, now seen corresponding path program 1 times [2021-03-24 09:44:47,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 09:44:47,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175733942] [2021-03-24 09:44:47,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 09:44:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 09:44:47,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:47,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:47,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 09:44:47,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:47,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 09:44:47,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 09:44:47,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 09:44:47,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 09:44:47,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175733942] [2021-03-24 09:44:47,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 09:44:47,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 09:44:47,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698383075] [2021-03-24 09:44:47,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 09:44:47,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 09:44:47,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 09:44:47,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 09:44:47,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 171 [2021-03-24 09:44:47,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 104 transitions, 553 flow. Second operand has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 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) [2021-03-24 09:44:47,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 09:44:47,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 171 [2021-03-24 09:44:47,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 09:44:47,626 INFO L129 PetriNetUnfolder]: 504/2100 cut-off events. [2021-03-24 09:44:47,626 INFO L130 PetriNetUnfolder]: For 1466/1528 co-relation queries the response was YES. [2021-03-24 09:44:47,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5040 conditions, 2100 events. 504/2100 cut-off events. For 1466/1528 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 17023 event pairs, 37 based on Foata normal form. 72/2135 useless extension candidates. Maximal degree in co-relation 5016. Up to 329 conditions per place. [2021-03-24 09:44:47,636 INFO L132 encePairwiseOnDemand]: 164/171 looper letters, 0 selfloop transitions, 0 changer transitions 113/113 dead transitions. [2021-03-24 09:44:47,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 113 transitions, 604 flow [2021-03-24 09:44:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 09:44:47,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 09:44:47,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 708 transitions. [2021-03-24 09:44:47,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8280701754385965 [2021-03-24 09:44:47,638 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 708 transitions. [2021-03-24 09:44:47,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 708 transitions. [2021-03-24 09:44:47,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 09:44:47,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 708 transitions. [2021-03-24 09:44:47,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 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) [2021-03-24 09:44:47,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:47,641 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-03-24 09:44:47,641 INFO L185 Difference]: Start difference. First operand has 100 places, 104 transitions, 553 flow. Second operand 5 states and 708 transitions. [2021-03-24 09:44:47,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 113 transitions, 604 flow [2021-03-24 09:44:47,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 113 transitions, 590 flow, removed 7 selfloop flow, removed 0 redundant places. [2021-03-24 09:44:47,649 INFO L241 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2021-03-24 09:44:47,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2021-03-24 09:44:47,650 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 37 predicate places. [2021-03-24 09:44:47,650 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2021-03-24 09:44:47,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 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) [2021-03-24 09:44:47,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 09:44:47,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 09:44:47 BasicIcfg [2021-03-24 09:44:47,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 09:44:47,654 INFO L168 Benchmark]: Toolchain (without parser) took 3812.41 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 317.9 MB in the beginning and 177.8 MB in the end (delta: 140.1 MB). Peak memory consumption was 213.0 MB. Max. memory is 16.0 GB. [2021-03-24 09:44:47,654 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 354.4 MB. Free memory is still 335.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 09:44:47,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.84 ms. Allocated memory is still 354.4 MB. Free memory was 317.8 MB in the beginning and 317.6 MB in the end (delta: 231.6 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-03-24 09:44:47,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.97 ms. Allocated memory is still 354.4 MB. Free memory was 317.6 MB in the beginning and 315.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 09:44:47,655 INFO L168 Benchmark]: Boogie Preprocessor took 16.40 ms. Allocated memory is still 354.4 MB. Free memory was 315.5 MB in the beginning and 313.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 09:44:47,655 INFO L168 Benchmark]: RCFGBuilder took 349.94 ms. Allocated memory is still 354.4 MB. Free memory was 313.4 MB in the beginning and 285.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-24 09:44:47,655 INFO L168 Benchmark]: TraceAbstraction took 3080.32 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 285.1 MB in the beginning and 177.8 MB in the end (delta: 107.3 MB). Peak memory consumption was 180.7 MB. Max. memory is 16.0 GB. [2021-03-24 09:44:47,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 354.4 MB. Free memory is still 335.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 338.84 ms. Allocated memory is still 354.4 MB. Free memory was 317.8 MB in the beginning and 317.6 MB in the end (delta: 231.6 kB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.97 ms. Allocated memory is still 354.4 MB. Free memory was 317.6 MB in the beginning and 315.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.40 ms. Allocated memory is still 354.4 MB. Free memory was 315.5 MB in the beginning and 313.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 349.94 ms. Allocated memory is still 354.4 MB. Free memory was 313.4 MB in the beginning and 285.1 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3080.32 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 285.1 MB in the beginning and 177.8 MB in the end (delta: 107.3 MB). Peak memory consumption was 180.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1158.9ms, 95 PlacesBefore, 65 PlacesAfterwards, 113 TransitionsBefore, 78 TransitionsAfterwards, 4816 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 5 ChoiceCompositions, 46 TotalNumberOfCompositions, 3070 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1749, positive: 1708, positive conditional: 0, positive unconditional: 1708, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1340, positive: 1325, positive conditional: 0, positive unconditional: 1325, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1340, positive: 1325, positive conditional: 0, positive unconditional: 1325, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1749, positive: 383, positive conditional: 0, positive unconditional: 383, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 1340, unknown conditional: 0, unknown unconditional: 1340] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2992.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1385.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1217.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 142 SDtfs, 101 SDslu, 66 SDs, 0 SdLazy, 258 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 137.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=553occurred in iteration=8, InterpolantAutomatonStates: 38, 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: 12.8ms SsaConstructionTime, 59.5ms SatisfiabilityAnalysisTime, 178.3ms InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...