/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 19:04:49,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 19:04:49,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 19:04:49,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 19:04:49,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 19:04:49,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 19:04:49,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 19:04:49,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 19:04:49,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 19:04:49,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 19:04:49,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 19:04:49,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 19:04:49,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 19:04:49,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 19:04:49,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 19:04:49,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 19:04:49,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 19:04:49,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 19:04:49,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 19:04:49,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 19:04:49,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 19:04:49,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 19:04:49,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 19:04:49,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 19:04:49,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 19:04:49,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 19:04:49,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 19:04:49,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 19:04:49,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 19:04:49,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 19:04:49,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 19:04:49,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 19:04:49,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 19:04:49,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 19:04:49,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 19:04:49,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 19:04:49,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 19:04:49,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 19:04:49,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 19:04:49,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 19:04:49,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 19:04:49,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-11 19:04:49,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 19:04:49,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 19:04:49,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 19:04:49,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 19:04:49,171 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 19:04:49,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 19:04:49,171 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 19:04:49,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 19:04:49,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 19:04:49,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 19:04:49,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 19:04:49,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 19:04:49,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 19:04:49,173 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 19:04:49,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 19:04:49,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 19:04:49,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 19:04:49,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 19:04:49,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 19:04:49,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 19:04:49,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 19:04:49,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 19:04:49,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 19:04:49,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 19:04:49,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 19:04:49,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 19:04:49,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 19:04:49,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 19:04:49,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 19:04:49,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 19:04:49,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 19:04:49,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 19:04:49,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 19:04:49,527 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 19:04:49,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-11 19:04:49,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4e54f52/a24065c37cd0490fb0d886039d802ef3/FLAG480b8386b [2021-03-11 19:04:50,283 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 19:04:50,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-03-11 19:04:50,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4e54f52/a24065c37cd0490fb0d886039d802ef3/FLAG480b8386b [2021-03-11 19:04:50,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b4e54f52/a24065c37cd0490fb0d886039d802ef3 [2021-03-11 19:04:50,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 19:04:50,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 19:04:50,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 19:04:50,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 19:04:50,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 19:04:50,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 07:04:50" (1/1) ... [2021-03-11 19:04:50,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a02298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:50, skipping insertion in model container [2021-03-11 19:04:50,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 07:04:50" (1/1) ... [2021-03-11 19:04:50,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 19:04:50,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 19:04:50,780 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 19:04:50,936 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] [2021-03-11 19:04:50,948 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] [2021-03-11 19:04:50,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 19:04:50,960 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 19:04:50,980 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 19:04:51,006 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] [2021-03-11 19:04:51,014 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] [2021-03-11 19:04:51,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 19:04:51,081 INFO L208 MainTranslator]: Completed translation [2021-03-11 19:04:51,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51 WrapperNode [2021-03-11 19:04:51,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 19:04:51,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 19:04:51,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 19:04:51,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 19:04:51,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 19:04:51,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 19:04:51,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 19:04:51,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 19:04:51,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... [2021-03-11 19:04:51,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 19:04:51,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 19:04:51,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 19:04:51,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 19:04:51,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 19:04:51,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 19:04:51,228 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-11 19:04:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-11 19:04:51,229 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-11 19:04:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-11 19:04:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 19:04:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 19:04:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 19:04:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 19:04:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 19:04:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 19:04:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 19:04:51,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 19:04:51,237 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 19:04:51,652 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 19:04:51,653 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-03-11 19:04:51,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 07:04:51 BoogieIcfgContainer [2021-03-11 19:04:51,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 19:04:51,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 19:04:51,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 19:04:51,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 19:04:51,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 07:04:50" (1/3) ... [2021-03-11 19:04:51,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f92e7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 07:04:51, skipping insertion in model container [2021-03-11 19:04:51,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:04:51" (2/3) ... [2021-03-11 19:04:51,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f92e7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 07:04:51, skipping insertion in model container [2021-03-11 19:04:51,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 07:04:51" (3/3) ... [2021-03-11 19:04:51,660 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-03-11 19:04:51,667 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 19:04:51,670 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 19:04:51,671 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 19:04:51,708 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,708 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,708 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,708 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,709 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,709 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,709 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,709 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,710 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,710 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,715 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,715 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,715 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,716 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,716 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,716 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,716 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,716 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,716 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,717 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,718 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,719 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,720 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,721 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,721 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,721 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,722 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,722 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,722 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,722 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,722 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,722 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,722 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,723 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,723 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,723 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,723 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,724 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,724 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,727 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,728 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,729 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,736 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,737 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,739 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,740 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,740 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,740 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,741 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,741 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,742 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,742 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,742 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,742 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,742 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,743 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,743 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,746 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,747 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,747 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,747 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:04:51,752 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 19:04:51,767 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-11 19:04:51,782 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:04:51,782 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:04:51,782 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:04:51,782 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:04:51,782 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:04:51,783 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:04:51,783 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:04:51,783 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:04:51,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 125 transitions, 272 flow [2021-03-11 19:04:51,828 INFO L129 PetriNetUnfolder]: 25/125 cut-off events. [2021-03-11 19:04:51,828 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 19:04:51,835 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. [2021-03-11 19:04:51,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 125 transitions, 272 flow [2021-03-11 19:04:51,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 113 transitions, 238 flow [2021-03-11 19:04:51,843 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:04:51,850 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 113 transitions, 238 flow [2021-03-11 19:04:51,852 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 113 transitions, 238 flow [2021-03-11 19:04:51,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 113 transitions, 238 flow [2021-03-11 19:04:51,871 INFO L129 PetriNetUnfolder]: 24/115 cut-off events. [2021-03-11 19:04:51,872 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 19:04:51,873 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. [2021-03-11 19:04:51,876 INFO L116 LiptonReduction]: Number of co-enabled transitions 4816 [2021-03-11 19:04:53,956 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-03-11 19:04:54,193 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2021-03-11 19:04:54,280 INFO L131 LiptonReduction]: Checked pairs total: 16220 [2021-03-11 19:04:54,280 INFO L133 LiptonReduction]: Total number of compositions: 71 [2021-03-11 19:04:54,282 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2442 [2021-03-11 19:04:54,288 INFO L129 PetriNetUnfolder]: 1/6 cut-off events. [2021-03-11 19:04:54,289 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:04:54,289 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:54,289 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-03-11 19:04:54,290 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:54,294 INFO L82 PathProgramCache]: Analyzing trace with hash 16487273, now seen corresponding path program 1 times [2021-03-11 19:04:54,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:54,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799019844] [2021-03-11 19:04:54,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:54,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:54,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:54,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:54,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799019844] [2021-03-11 19:04:54,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:54,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:04:54,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259544438] [2021-03-11 19:04:54,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 19:04:54,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:54,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 19:04:54,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 19:04:54,431 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 196 [2021-03-11 19:04:54,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 64 transitions, 140 flow. Second operand has 2 states, 2 states have (on average 168.5) internal successors, (337), 2 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:54,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 196 [2021-03-11 19:04:54,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:54,444 INFO L129 PetriNetUnfolder]: 12/60 cut-off events. [2021-03-11 19:04:54,445 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 19:04:54,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 12/60 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 0 based on Foata normal form. 6/52 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2021-03-11 19:04:54,446 INFO L132 encePairwiseOnDemand]: 190/196 looper letters, 0 selfloop transitions, 0 changer transitions 0/58 dead transitions. [2021-03-11 19:04:54,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 58 transitions, 128 flow [2021-03-11 19:04:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 19:04:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-11 19:04:54,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 342 transitions. [2021-03-11 19:04:54,456 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8724489795918368 [2021-03-11 19:04:54,457 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 342 transitions. [2021-03-11 19:04:54,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 342 transitions. [2021-03-11 19:04:54,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:54,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 342 transitions. [2021-03-11 19:04:54,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 171.0) internal successors, (342), 2 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,468 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,469 INFO L185 Difference]: Start difference. First operand has 52 places, 64 transitions, 140 flow. Second operand 2 states and 342 transitions. [2021-03-11 19:04:54,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 58 transitions, 128 flow [2021-03-11 19:04:54,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 19:04:54,474 INFO L241 Difference]: Finished difference. Result has 49 places, 58 transitions, 120 flow [2021-03-11 19:04:54,475 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=120, PETRI_PLACES=49, PETRI_TRANSITIONS=58} [2021-03-11 19:04:54,476 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2021-03-11 19:04:54,476 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 58 transitions, 120 flow [2021-03-11 19:04:54,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 168.5) internal successors, (337), 2 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,477 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:54,477 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:54,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 19:04:54,477 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:54,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:54,478 INFO L82 PathProgramCache]: Analyzing trace with hash -166618981, now seen corresponding path program 1 times [2021-03-11 19:04:54,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:54,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781679725] [2021-03-11 19:04:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:54,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:54,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:54,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781679725] [2021-03-11 19:04:54,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:54,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:04:54,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090792561] [2021-03-11 19:04:54,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:04:54,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:54,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:04:54,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:04:54,533 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 196 [2021-03-11 19:04:54,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 58 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:54,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 196 [2021-03-11 19:04:54,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:54,575 INFO L129 PetriNetUnfolder]: 24/111 cut-off events. [2021-03-11 19:04:54,575 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:04:54,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 111 events. 24/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 360 event pairs, 2 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 148. Up to 21 conditions per place. [2021-03-11 19:04:54,576 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 8 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2021-03-11 19:04:54,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 62 transitions, 154 flow [2021-03-11 19:04:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:04:54,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:04:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 471 transitions. [2021-03-11 19:04:54,583 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8010204081632653 [2021-03-11 19:04:54,583 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 471 transitions. [2021-03-11 19:04:54,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 471 transitions. [2021-03-11 19:04:54,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:54,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 471 transitions. [2021-03-11 19:04:54,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.0) internal successors, (471), 3 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) [2021-03-11 19:04:54,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,588 INFO L185 Difference]: Start difference. First operand has 49 places, 58 transitions, 120 flow. Second operand 3 states and 471 transitions. [2021-03-11 19:04:54,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 62 transitions, 154 flow [2021-03-11 19:04:54,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 62 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 19:04:54,590 INFO L241 Difference]: Finished difference. Result has 53 places, 60 transitions, 152 flow [2021-03-11 19:04:54,590 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=53, PETRI_TRANSITIONS=60} [2021-03-11 19:04:54,590 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2021-03-11 19:04:54,591 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 60 transitions, 152 flow [2021-03-11 19:04:54,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,594 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:54,594 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:54,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 19:04:54,594 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:54,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:54,595 INFO L82 PathProgramCache]: Analyzing trace with hash 258342794, now seen corresponding path program 1 times [2021-03-11 19:04:54,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:54,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189058291] [2021-03-11 19:04:54,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:54,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:54,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 19:04:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:54,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189058291] [2021-03-11 19:04:54,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:54,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:04:54,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190784932] [2021-03-11 19:04:54,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:04:54,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:54,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:04:54,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:04:54,659 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 196 [2021-03-11 19:04:54,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 60 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:54,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 196 [2021-03-11 19:04:54,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:54,694 INFO L129 PetriNetUnfolder]: 18/96 cut-off events. [2021-03-11 19:04:54,695 INFO L130 PetriNetUnfolder]: For 25/32 co-relation queries the response was YES. [2021-03-11 19:04:54,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 96 events. 18/96 cut-off events. For 25/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 283 event pairs, 2 based on Foata normal form. 8/92 useless extension candidates. Maximal degree in co-relation 153. Up to 14 conditions per place. [2021-03-11 19:04:54,696 INFO L132 encePairwiseOnDemand]: 190/196 looper letters, 7 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2021-03-11 19:04:54,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 60 transitions, 174 flow [2021-03-11 19:04:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:04:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:04:54,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 469 transitions. [2021-03-11 19:04:54,703 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7976190476190477 [2021-03-11 19:04:54,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 469 transitions. [2021-03-11 19:04:54,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 469 transitions. [2021-03-11 19:04:54,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:54,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 469 transitions. [2021-03-11 19:04:54,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,707 INFO L185 Difference]: Start difference. First operand has 53 places, 60 transitions, 152 flow. Second operand 3 states and 469 transitions. [2021-03-11 19:04:54,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 60 transitions, 174 flow [2021-03-11 19:04:54,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:04:54,709 INFO L241 Difference]: Finished difference. Result has 54 places, 60 transitions, 158 flow [2021-03-11 19:04:54,709 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=54, PETRI_TRANSITIONS=60} [2021-03-11 19:04:54,710 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2021-03-11 19:04:54,710 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 60 transitions, 158 flow [2021-03-11 19:04:54,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,710 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:54,710 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:54,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 19:04:54,710 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:54,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:54,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1913679063, now seen corresponding path program 1 times [2021-03-11 19:04:54,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:54,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047907716] [2021-03-11 19:04:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:54,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:54,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:54,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:54,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047907716] [2021-03-11 19:04:54,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:54,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:04:54,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431433801] [2021-03-11 19:04:54,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:04:54,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:54,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:04:54,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:04:54,790 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 196 [2021-03-11 19:04:54,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 60 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:54,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 196 [2021-03-11 19:04:54,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:54,866 INFO L129 PetriNetUnfolder]: 282/671 cut-off events. [2021-03-11 19:04:54,866 INFO L130 PetriNetUnfolder]: For 79/80 co-relation queries the response was YES. [2021-03-11 19:04:54,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 671 events. 282/671 cut-off events. For 79/80 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3783 event pairs, 36 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 1154. Up to 227 conditions per place. [2021-03-11 19:04:54,871 INFO L132 encePairwiseOnDemand]: 190/196 looper letters, 33 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2021-03-11 19:04:54,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 270 flow [2021-03-11 19:04:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:04:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:04:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2021-03-11 19:04:54,873 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7295918367346939 [2021-03-11 19:04:54,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 429 transitions. [2021-03-11 19:04:54,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions. [2021-03-11 19:04:54,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:54,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions. [2021-03-11 19:04:54,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,877 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,877 INFO L185 Difference]: Start difference. First operand has 54 places, 60 transitions, 158 flow. Second operand 3 states and 429 transitions. [2021-03-11 19:04:54,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 270 flow [2021-03-11 19:04:54,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:04:54,880 INFO L241 Difference]: Finished difference. Result has 57 places, 65 transitions, 196 flow [2021-03-11 19:04:54,881 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=57, PETRI_TRANSITIONS=65} [2021-03-11 19:04:54,881 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 5 predicate places. [2021-03-11 19:04:54,881 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 65 transitions, 196 flow [2021-03-11 19:04:54,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,881 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:54,882 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:54,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 19:04:54,882 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:54,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:54,882 INFO L82 PathProgramCache]: Analyzing trace with hash 620538039, now seen corresponding path program 2 times [2021-03-11 19:04:54,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:54,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042815550] [2021-03-11 19:04:54,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:54,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:54,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:54,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:54,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:54,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042815550] [2021-03-11 19:04:54,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:54,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:04:54,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495308176] [2021-03-11 19:04:54,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:04:54,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:54,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:04:54,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:04:54,921 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 196 [2021-03-11 19:04:54,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 65 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:54,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 196 [2021-03-11 19:04:54,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:54,983 INFO L129 PetriNetUnfolder]: 190/645 cut-off events. [2021-03-11 19:04:54,983 INFO L130 PetriNetUnfolder]: For 90/96 co-relation queries the response was YES. [2021-03-11 19:04:54,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1046 conditions, 645 events. 190/645 cut-off events. For 90/96 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4227 event pairs, 16 based on Foata normal form. 6/561 useless extension candidates. Maximal degree in co-relation 1039. Up to 74 conditions per place. [2021-03-11 19:04:54,990 INFO L132 encePairwiseOnDemand]: 193/196 looper letters, 9 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2021-03-11 19:04:54,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 226 flow [2021-03-11 19:04:54,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:04:54,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:04:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2021-03-11 19:04:54,992 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8044217687074829 [2021-03-11 19:04:54,992 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 473 transitions. [2021-03-11 19:04:54,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 473 transitions. [2021-03-11 19:04:54,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:54,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 473 transitions. [2021-03-11 19:04:54,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:54,996 INFO L185 Difference]: Start difference. First operand has 57 places, 65 transitions, 196 flow. Second operand 3 states and 473 transitions. [2021-03-11 19:04:54,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 226 flow [2021-03-11 19:04:55,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 69 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:04:55,004 INFO L241 Difference]: Finished difference. Result has 59 places, 67 transitions, 206 flow [2021-03-11 19:04:55,004 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=59, PETRI_TRANSITIONS=67} [2021-03-11 19:04:55,004 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2021-03-11 19:04:55,004 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 67 transitions, 206 flow [2021-03-11 19:04:55,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,005 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:55,005 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:55,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 19:04:55,005 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:55,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:55,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1542109689, now seen corresponding path program 3 times [2021-03-11 19:04:55,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:55,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113380255] [2021-03-11 19:04:55,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:55,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:55,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:55,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:55,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113380255] [2021-03-11 19:04:55,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:55,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:04:55,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011139841] [2021-03-11 19:04:55,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:04:55,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:55,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:04:55,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:04:55,071 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 196 [2021-03-11 19:04:55,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 67 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:55,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 196 [2021-03-11 19:04:55,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:55,298 INFO L129 PetriNetUnfolder]: 615/1565 cut-off events. [2021-03-11 19:04:55,298 INFO L130 PetriNetUnfolder]: For 322/348 co-relation queries the response was YES. [2021-03-11 19:04:55,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3028 conditions, 1565 events. 615/1565 cut-off events. For 322/348 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11460 event pairs, 90 based on Foata normal form. 56/1476 useless extension candidates. Maximal degree in co-relation 3020. Up to 518 conditions per place. [2021-03-11 19:04:55,306 INFO L132 encePairwiseOnDemand]: 180/196 looper letters, 42 selfloop transitions, 11 changer transitions 12/102 dead transitions. [2021-03-11 19:04:55,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 102 transitions, 420 flow [2021-03-11 19:04:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 19:04:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 19:04:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 658 transitions. [2021-03-11 19:04:55,309 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2021-03-11 19:04:55,309 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 658 transitions. [2021-03-11 19:04:55,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 658 transitions. [2021-03-11 19:04:55,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:55,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 658 transitions. [2021-03-11 19:04:55,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.6) internal successors, (658), 5 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,313 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,313 INFO L185 Difference]: Start difference. First operand has 59 places, 67 transitions, 206 flow. Second operand 5 states and 658 transitions. [2021-03-11 19:04:55,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 102 transitions, 420 flow [2021-03-11 19:04:55,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 102 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:04:55,316 INFO L241 Difference]: Finished difference. Result has 64 places, 72 transitions, 297 flow [2021-03-11 19:04:55,316 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=297, PETRI_PLACES=64, PETRI_TRANSITIONS=72} [2021-03-11 19:04:55,317 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 12 predicate places. [2021-03-11 19:04:55,317 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 72 transitions, 297 flow [2021-03-11 19:04:55,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.5) internal successors, (478), 4 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,318 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:55,318 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:55,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 19:04:55,318 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:55,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:55,319 INFO L82 PathProgramCache]: Analyzing trace with hash -143394535, now seen corresponding path program 4 times [2021-03-11 19:04:55,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:55,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542121902] [2021-03-11 19:04:55,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:55,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:55,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:55,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:55,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542121902] [2021-03-11 19:04:55,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:55,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:04:55,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930181492] [2021-03-11 19:04:55,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:04:55,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:55,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:04:55,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:04:55,370 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 196 [2021-03-11 19:04:55,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 72 transitions, 297 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:55,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 196 [2021-03-11 19:04:55,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:55,463 INFO L129 PetriNetUnfolder]: 291/1129 cut-off events. [2021-03-11 19:04:55,463 INFO L130 PetriNetUnfolder]: For 521/588 co-relation queries the response was YES. [2021-03-11 19:04:55,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2295 conditions, 1129 events. 291/1129 cut-off events. For 521/588 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 8456 event pairs, 30 based on Foata normal form. 44/1070 useless extension candidates. Maximal degree in co-relation 2284. Up to 206 conditions per place. [2021-03-11 19:04:55,470 INFO L132 encePairwiseOnDemand]: 191/196 looper letters, 19 selfloop transitions, 7 changer transitions 3/87 dead transitions. [2021-03-11 19:04:55,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 87 transitions, 411 flow [2021-03-11 19:04:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 19:04:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 19:04:55,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 771 transitions. [2021-03-11 19:04:55,472 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.786734693877551 [2021-03-11 19:04:55,472 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 771 transitions. [2021-03-11 19:04:55,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 771 transitions. [2021-03-11 19:04:55,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:55,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 771 transitions. [2021-03-11 19:04:55,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,476 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,476 INFO L185 Difference]: Start difference. First operand has 64 places, 72 transitions, 297 flow. Second operand 5 states and 771 transitions. [2021-03-11 19:04:55,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 87 transitions, 411 flow [2021-03-11 19:04:55,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 382 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-11 19:04:55,481 INFO L241 Difference]: Finished difference. Result has 69 places, 77 transitions, 328 flow [2021-03-11 19:04:55,481 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=69, PETRI_TRANSITIONS=77} [2021-03-11 19:04:55,481 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2021-03-11 19:04:55,481 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 77 transitions, 328 flow [2021-03-11 19:04:55,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,482 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:55,482 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:55,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 19:04:55,482 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:55,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:55,482 INFO L82 PathProgramCache]: Analyzing trace with hash 321539577, now seen corresponding path program 1 times [2021-03-11 19:04:55,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:55,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10423422] [2021-03-11 19:04:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:55,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:55,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 19:04:55,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:55,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10423422] [2021-03-11 19:04:55,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:55,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:04:55,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824723184] [2021-03-11 19:04:55,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:04:55,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:55,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:04:55,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:04:55,510 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 196 [2021-03-11 19:04:55,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 77 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:55,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 196 [2021-03-11 19:04:55,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:55,582 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([353] L777-->L780: Formula: (= v_~x~0_1 2) InVars {} OutVars{~x~0=v_~x~0_1} AuxVars[] AssignedVars[~x~0][14], [Black: 124#true, 35#L846-2true, Black: 132#(= ~x~0 1), 110#true, Black: 138#(= 2 ~y~0), Black: 141#(and (= 2 ~y~0) (= 2 thr1Thread1of1ForFork0_~y1~0)), 51#L780true, 148#(= 2 ~x~0), Black: 113#true, Black: 146#true, 27#L733true, Black: 149#(= 2 thr1Thread1of1ForFork0_~x1~0), Black: 121#(= ~X~0 1), Black: 151#(and (= 2 ~x~0) (= 2 thr1Thread1of1ForFork0_~x1~0)), 159#(= ~b2~0 1)]) [2021-03-11 19:04:55,583 INFO L384 tUnfolder$Statistics]: this new event has 29 ancestors and is cut-off event [2021-03-11 19:04:55,583 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-03-11 19:04:55,583 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-03-11 19:04:55,583 INFO L387 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2021-03-11 19:04:55,587 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([417] L737-->L744: Formula: (= v_thr1Thread1of1ForFork0_~b21~0_1 v_~b2~0_5) InVars {~b2~0=v_~b2~0_5} OutVars{thr1Thread1of1ForFork0_~b21~0=v_thr1Thread1of1ForFork0_~b21~0_1, ~b2~0=v_~b2~0_5} AuxVars[] AssignedVars[thr1Thread1of1ForFork0_~b21~0][29], [Black: 124#true, 162#(and (= ~b2~0 1) (= thr1Thread1of1ForFork0_~b21~0 1)), 35#L846-2true, Black: 130#true, 44#L777true, 110#true, Black: 138#(= 2 ~y~0), Black: 141#(and (= 2 ~y~0) (= 2 thr1Thread1of1ForFork0_~y1~0)), 146#true, Black: 113#true, Black: 148#(= 2 ~x~0), Black: 149#(= 2 thr1Thread1of1ForFork0_~x1~0), Black: 121#(= ~X~0 1), Black: 151#(and (= 2 ~x~0) (= 2 thr1Thread1of1ForFork0_~x1~0)), 29#L744true]) [2021-03-11 19:04:55,587 INFO L384 tUnfolder$Statistics]: this new event has 30 ancestors and is cut-off event [2021-03-11 19:04:55,587 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-11 19:04:55,587 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-03-11 19:04:55,587 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2021-03-11 19:04:55,601 INFO L129 PetriNetUnfolder]: 252/947 cut-off events. [2021-03-11 19:04:55,601 INFO L130 PetriNetUnfolder]: For 340/368 co-relation queries the response was YES. [2021-03-11 19:04:55,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 947 events. 252/947 cut-off events. For 340/368 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6953 event pairs, 29 based on Foata normal form. 41/908 useless extension candidates. Maximal degree in co-relation 1884. Up to 168 conditions per place. [2021-03-11 19:04:55,607 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 11 selfloop transitions, 9 changer transitions 5/87 dead transitions. [2021-03-11 19:04:55,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 87 transitions, 390 flow [2021-03-11 19:04:55,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 19:04:55,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 19:04:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 762 transitions. [2021-03-11 19:04:55,609 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7775510204081633 [2021-03-11 19:04:55,609 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 762 transitions. [2021-03-11 19:04:55,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 762 transitions. [2021-03-11 19:04:55,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:55,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 762 transitions. [2021-03-11 19:04:55,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.4) internal successors, (762), 5 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,614 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,614 INFO L185 Difference]: Start difference. First operand has 69 places, 77 transitions, 328 flow. Second operand 5 states and 762 transitions. [2021-03-11 19:04:55,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 87 transitions, 390 flow [2021-03-11 19:04:55,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 87 transitions, 386 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-11 19:04:55,618 INFO L241 Difference]: Finished difference. Result has 76 places, 78 transitions, 352 flow [2021-03-11 19:04:55,618 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=352, PETRI_PLACES=76, PETRI_TRANSITIONS=78} [2021-03-11 19:04:55,618 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 24 predicate places. [2021-03-11 19:04:55,618 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 78 transitions, 352 flow [2021-03-11 19:04:55,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,619 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:55,619 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:55,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 19:04:55,619 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:55,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:55,619 INFO L82 PathProgramCache]: Analyzing trace with hash 365705799, now seen corresponding path program 1 times [2021-03-11 19:04:55,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:55,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919325884] [2021-03-11 19:04:55,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:55,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:55,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 19:04:55,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:55,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919325884] [2021-03-11 19:04:55,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:55,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:04:55,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027808894] [2021-03-11 19:04:55,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:04:55,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:55,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:04:55,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:04:55,658 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 196 [2021-03-11 19:04:55,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 78 transitions, 352 flow. Second operand has 4 states, 4 states have (on average 147.25) internal successors, (589), 4 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:55,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 196 [2021-03-11 19:04:55,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:55,741 INFO L129 PetriNetUnfolder]: 235/870 cut-off events. [2021-03-11 19:04:55,742 INFO L130 PetriNetUnfolder]: For 363/387 co-relation queries the response was YES. [2021-03-11 19:04:55,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1905 conditions, 870 events. 235/870 cut-off events. For 363/387 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5655 event pairs, 31 based on Foata normal form. 7/797 useless extension candidates. Maximal degree in co-relation 1888. Up to 110 conditions per place. [2021-03-11 19:04:55,747 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 9 selfloop transitions, 10 changer transitions 6/90 dead transitions. [2021-03-11 19:04:55,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 90 transitions, 419 flow [2021-03-11 19:04:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 19:04:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 19:04:55,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 753 transitions. [2021-03-11 19:04:55,750 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7683673469387755 [2021-03-11 19:04:55,750 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 753 transitions. [2021-03-11 19:04:55,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 753 transitions. [2021-03-11 19:04:55,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:55,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 753 transitions. [2021-03-11 19:04:55,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.6) internal successors, (753), 5 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,754 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,754 INFO L185 Difference]: Start difference. First operand has 76 places, 78 transitions, 352 flow. Second operand 5 states and 753 transitions. [2021-03-11 19:04:55,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 90 transitions, 419 flow [2021-03-11 19:04:55,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 90 transitions, 415 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-11 19:04:55,760 INFO L241 Difference]: Finished difference. Result has 82 places, 81 transitions, 387 flow [2021-03-11 19:04:55,760 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2021-03-11 19:04:55,760 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 30 predicate places. [2021-03-11 19:04:55,760 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 387 flow [2021-03-11 19:04:55,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 147.25) internal successors, (589), 4 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,761 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:04:55,761 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 19:04:55,761 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 19:04:55,761 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:04:55,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:04:55,761 INFO L82 PathProgramCache]: Analyzing trace with hash -137268537, now seen corresponding path program 1 times [2021-03-11 19:04:55,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:04:55,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779288591] [2021-03-11 19:04:55,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:04:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:04:55,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:55,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:04:55,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:04:55,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:04:55,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:04:55,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779288591] [2021-03-11 19:04:55,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:04:55,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 19:04:55,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068980654] [2021-03-11 19:04:55,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:04:55,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:04:55,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:04:55,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:04:55,788 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 196 [2021-03-11 19:04:55,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:04:55,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 196 [2021-03-11 19:04:55,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:04:55,829 INFO L129 PetriNetUnfolder]: 85/338 cut-off events. [2021-03-11 19:04:55,829 INFO L130 PetriNetUnfolder]: For 322/358 co-relation queries the response was YES. [2021-03-11 19:04:55,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 338 events. 85/338 cut-off events. For 322/358 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1678 event pairs, 9 based on Foata normal form. 26/333 useless extension candidates. Maximal degree in co-relation 877. Up to 48 conditions per place. [2021-03-11 19:04:55,831 INFO L132 encePairwiseOnDemand]: 192/196 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2021-03-11 19:04:55,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 76 transitions, 408 flow [2021-03-11 19:04:55,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 19:04:55,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 19:04:55,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 762 transitions. [2021-03-11 19:04:55,833 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7775510204081633 [2021-03-11 19:04:55,833 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 762 transitions. [2021-03-11 19:04:55,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 762 transitions. [2021-03-11 19:04:55,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:04:55,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 762 transitions. [2021-03-11 19:04:55,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.4) internal successors, (762), 5 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,839 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,839 INFO L185 Difference]: Start difference. First operand has 82 places, 81 transitions, 387 flow. Second operand 5 states and 762 transitions. [2021-03-11 19:04:55,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 76 transitions, 408 flow [2021-03-11 19:04:55,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 76 transitions, 380 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-11 19:04:55,843 INFO L241 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2021-03-11 19:04:55,844 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2021-03-11 19:04:55,844 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 25 predicate places. [2021-03-11 19:04:55,844 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2021-03-11 19:04:55,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 19:04:55,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 19:04:55,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 07:04:55 BasicIcfg [2021-03-11 19:04:55,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 19:04:55,848 INFO L168 Benchmark]: Toolchain (without parser) took 5291.35 ms. Allocated memory was 354.4 MB in the beginning and 429.9 MB in the end (delta: 75.5 MB). Free memory was 316.9 MB in the beginning and 230.1 MB in the end (delta: 86.7 MB). Peak memory consumption was 162.5 MB. Max. memory is 16.0 GB. [2021-03-11 19:04:55,850 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory is still 335.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 19:04:55,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.86 ms. Allocated memory is still 354.4 MB. Free memory was 316.3 MB in the beginning and 316.3 MB in the end (delta: -57.7 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-03-11 19:04:55,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.94 ms. Allocated memory is still 354.4 MB. Free memory was 316.3 MB in the beginning and 314.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 19:04:55,852 INFO L168 Benchmark]: Boogie Preprocessor took 33.46 ms. Allocated memory is still 354.4 MB. Free memory was 314.2 MB in the beginning and 313.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 19:04:55,854 INFO L168 Benchmark]: RCFGBuilder took 480.43 ms. Allocated memory is still 354.4 MB. Free memory was 313.2 MB in the beginning and 284.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-11 19:04:55,854 INFO L168 Benchmark]: TraceAbstraction took 4191.92 ms. Allocated memory was 354.4 MB in the beginning and 429.9 MB in the end (delta: 75.5 MB). Free memory was 283.8 MB in the beginning and 230.1 MB in the end (delta: 53.7 MB). Peak memory consumption was 130.2 MB. Max. memory is 16.0 GB. [2021-03-11 19:04:55,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory is still 335.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 506.86 ms. Allocated memory is still 354.4 MB. Free memory was 316.3 MB in the beginning and 316.3 MB in the end (delta: -57.7 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.94 ms. Allocated memory is still 354.4 MB. Free memory was 316.3 MB in the beginning and 314.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.46 ms. Allocated memory is still 354.4 MB. Free memory was 314.2 MB in the beginning and 313.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 480.43 ms. Allocated memory is still 354.4 MB. Free memory was 313.2 MB in the beginning and 284.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4191.92 ms. Allocated memory was 354.4 MB in the beginning and 429.9 MB in the end (delta: 75.5 MB). Free memory was 283.8 MB in the beginning and 230.1 MB in the end (delta: 53.7 MB). Peak memory consumption was 130.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2428.0ms, 95 PlacesBefore, 52 PlacesAfterwards, 113 TransitionsBefore, 64 TransitionsAfterwards, 4816 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 6 ChoiceCompositions, 71 TotalNumberOfCompositions, 16220 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7685, positive: 7317, positive conditional: 0, positive unconditional: 7317, negative: 368, negative conditional: 0, negative unconditional: 368, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2940, positive: 2887, positive conditional: 0, positive unconditional: 2887, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2940, positive: 2831, positive conditional: 0, positive unconditional: 2831, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 109, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 134, negative conditional: 0, negative unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7685, positive: 4430, positive conditional: 0, positive unconditional: 4430, negative: 315, negative conditional: 0, negative unconditional: 315, unknown: 2940, unknown conditional: 0, unknown unconditional: 2940] , Statistics on independence cache: Total cache size (in pairs): 774, Positive cache size: 732, Positive conditional cache size: 0, Positive unconditional cache size: 732, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42 - 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4065.9ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 967.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2503.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 123 SDtfs, 76 SDslu, 43 SDs, 0 SdLazy, 206 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 147.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=387occurred in iteration=9, InterpolantAutomatonStates: 39, 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: 19.6ms SsaConstructionTime, 67.8ms SatisfiabilityAnalysisTime, 307.4ms InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...