/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/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 19:39:17,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 19:39:17,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 19:39:17,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 19:39:17,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 19:39:17,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 19:39:17,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 19:39:17,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 19:39:17,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 19:39:17,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 19:39:17,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 19:39:17,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 19:39:17,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 19:39:17,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 19:39:17,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 19:39:17,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 19:39:17,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 19:39:17,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 19:39:17,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 19:39:17,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 19:39:17,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 19:39:17,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 19:39:17,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 19:39:17,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 19:39:17,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-10 19:39:17,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 19:39:17,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 19:39:17,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 19:39:17,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 19:39:17,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 19:39:17,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 19:39:17,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 19:39:17,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 19:39:17,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 19:39:17,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 19:39:17,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 19:39:17,264 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 [2021-06-10 19:39:17,297 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 19:39:17,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 19:39:17,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 19:39:17,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 19:39:17,301 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 19:39:17,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 19:39:17,301 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 19:39:17,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 19:39:17,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 19:39:17,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 19:39:17,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 19:39:17,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 19:39:17,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 19:39:17,303 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 19:39:17,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 19:39:17,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 19:39:17,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 19:39:17,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 19:39:17,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 19:39:17,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 19:39:17,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 19:39:17,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 19:39:17,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 19:39:17,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 19:39:17,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 19:39:17,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 19:39:17,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 19:39:17,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 19:39:17,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 19:39:17,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 19:39:17,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 19:39:17,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 19:39:17,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 19:39:17,595 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 19:39:17,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2021-06-10 19:39:17,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ffa6b3d8/7862c481fbc54a36ad18c884f937411f/FLAG5a154030f [2021-06-10 19:39:18,093 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 19:39:18,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2021-06-10 19:39:18,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ffa6b3d8/7862c481fbc54a36ad18c884f937411f/FLAG5a154030f [2021-06-10 19:39:18,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ffa6b3d8/7862c481fbc54a36ad18c884f937411f [2021-06-10 19:39:18,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 19:39:18,123 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 19:39:18,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 19:39:18,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 19:39:18,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 19:39:18,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22deb727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18, skipping insertion in model container [2021-06-10 19:39:18,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 19:39:18,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 19:39:18,302 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 19:39:18,423 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/dekker.i[31403,31416] [2021-06-10 19:39:18,428 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/dekker.i[32483,32496] [2021-06-10 19:39:18,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 19:39:18,438 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 19:39:18,449 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 19:39:18,466 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/dekker.i[31403,31416] [2021-06-10 19:39:18,468 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/dekker.i[32483,32496] [2021-06-10 19:39:18,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 19:39:18,523 INFO L208 MainTranslator]: Completed translation [2021-06-10 19:39:18,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18 WrapperNode [2021-06-10 19:39:18,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 19:39:18,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 19:39:18,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 19:39:18,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 19:39:18,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 19:39:18,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 19:39:18,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 19:39:18,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 19:39:18,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (1/1) ... [2021-06-10 19:39:18,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 19:39:18,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 19:39:18,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 19:39:18,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 19:39:18,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (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 [2021-06-10 19:39:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-10 19:39:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-10 19:39:18,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-10 19:39:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-10 19:39:18,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-10 19:39:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 19:39:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 19:39:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 19:39:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 19:39:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 19:39:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 19:39:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 19:39:18,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 19:39:18,651 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 19:39:19,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 19:39:19,030 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-06-10 19:39:19,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 07:39:19 BoogieIcfgContainer [2021-06-10 19:39:19,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 19:39:19,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 19:39:19,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 19:39:19,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 19:39:19,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 07:39:18" (1/3) ... [2021-06-10 19:39:19,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de4d26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 07:39:19, skipping insertion in model container [2021-06-10 19:39:19,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 07:39:18" (2/3) ... [2021-06-10 19:39:19,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de4d26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 07:39:19, skipping insertion in model container [2021-06-10 19:39:19,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 07:39:19" (3/3) ... [2021-06-10 19:39:19,039 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-06-10 19:39:19,044 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 19:39:19,047 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-10 19:39:19,048 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 19:39:19,089 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,089 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,090 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,090 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,091 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,091 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,091 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,092 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,092 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,092 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,092 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,092 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,092 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,093 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,094 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,095 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,095 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,095 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,095 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,095 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,095 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,095 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,096 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,096 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,096 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,101 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,102 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,102 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,103 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,104 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,104 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,104 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,104 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,104 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,105 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,106 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,108 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,109 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,113 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,114 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,114 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,118 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,119 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,119 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,119 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,119 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,119 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 19:39:19,133 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-10 19:39:19,151 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-10 19:39:19,178 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 19:39:19,179 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 19:39:19,179 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 19:39:19,179 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 19:39:19,179 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 19:39:19,179 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 19:39:19,179 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 19:39:19,179 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 19:39:19,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 96 transitions, 214 flow [2021-06-10 19:39:19,240 INFO L129 PetriNetUnfolder]: 14/96 cut-off events. [2021-06-10 19:39:19,241 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 19:39:19,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 96 events. 14/96 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 160 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2021-06-10 19:39:19,254 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 96 transitions, 214 flow [2021-06-10 19:39:19,258 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 84 transitions, 180 flow [2021-06-10 19:39:19,260 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 19:39:19,277 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 84 transitions, 180 flow [2021-06-10 19:39:19,284 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 84 transitions, 180 flow [2021-06-10 19:39:19,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 84 transitions, 180 flow [2021-06-10 19:39:19,314 INFO L129 PetriNetUnfolder]: 13/86 cut-off events. [2021-06-10 19:39:19,314 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 19:39:19,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 13/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 154 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-06-10 19:39:19,324 INFO L151 LiptonReduction]: Number of co-enabled transitions 2028 [2021-06-10 19:39:19,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,676 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-06-10 19:39:19,681 INFO L147 QuantifierPusher]: treesize reduction 13, result has 7.1 percent of original size 1 [2021-06-10 19:39:19,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,826 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:19,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:39:19,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:39:19,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:19,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:19,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,511 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-06-10 19:39:20,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:20,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:39:20,537 INFO L147 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size 14 [2021-06-10 19:39:20,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:20,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-10 19:39:20,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 19:39:20,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:20,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:20,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 19:39:20,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 19:39:20,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:20,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:21,010 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.4 percent of original size [2021-06-10 19:39:21,018 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 19:39:21,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 19:39:21,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 19:39:21,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 19:39:21,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 19:39:21,039 INFO L147 QuantifierPusher]: treesize reduction 15, result has 65.9 percent of original size 29 [2021-06-10 19:39:21,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 19:39:21,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 19:39:21,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 19:39:21,409 INFO L142 QuantifierPusher]: treesize reduction 21, result has 75.6 percent of original size [2021-06-10 19:39:21,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-10 19:39:21,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-10 19:39:21,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-10 19:39:21,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-10 19:39:21,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:21,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 19:39:21,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-10 19:39:21,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:21,605 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-06-10 19:39:21,816 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-10 19:39:21,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:21,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 19:39:22,086 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2021-06-10 19:39:22,341 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2021-06-10 19:39:22,422 INFO L142 QuantifierPusher]: treesize reduction 21, result has 84.9 percent of original size [2021-06-10 19:39:22,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:22,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:22,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 19:39:22,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-10 19:39:22,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:22,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:22,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-10 19:39:22,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-10 19:39:22,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:22,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:22,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-10 19:39:22,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-10 19:39:22,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 19:39:22,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-10 19:39:22,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-10 19:39:22,455 INFO L163 LiptonReduction]: Checked pairs total: 5130 [2021-06-10 19:39:22,455 INFO L165 LiptonReduction]: Total number of compositions: 64 [2021-06-10 19:39:22,457 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3198 [2021-06-10 19:39:22,469 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2021-06-10 19:39:22,470 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-06-10 19:39:22,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:39:22,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-06-10 19:39:22,470 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:39:22,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:39:22,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1206200002, now seen corresponding path program 1 times [2021-06-10 19:39:22,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:39:22,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407424973] [2021-06-10 19:39:22,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:39:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:39:22,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:22,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:39:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:39:22,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407424973] [2021-06-10 19:39:22,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:39:22,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 19:39:22,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113055590] [2021-06-10 19:39:22,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 19:39:22,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:39:22,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 19:39:22,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 19:39:22,659 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2021-06-10 19:39:22,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2021-06-10 19:39:22,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:39:22,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2021-06-10 19:39:22,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:39:22,714 INFO L129 PetriNetUnfolder]: 9/74 cut-off events. [2021-06-10 19:39:22,714 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-10 19:39:22,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 74 events. 9/74 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 310 event pairs, 1 based on Foata normal form. 4/65 useless extension candidates. Maximal degree in co-relation 92. Up to 14 conditions per place. [2021-06-10 19:39:22,716 INFO L132 encePairwiseOnDemand]: 153/160 looper letters, 5 selfloop transitions, 5 changer transitions 0/39 dead transitions. [2021-06-10 19:39:22,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 110 flow [2021-06-10 19:39:22,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 19:39:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 19:39:22,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2021-06-10 19:39:22,731 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2021-06-10 19:39:22,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2021-06-10 19:39:22,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2021-06-10 19:39:22,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:39:22,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2021-06-10 19:39:22,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2021-06-10 19:39:22,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2021-06-10 19:39:22,748 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2021-06-10 19:39:22,749 INFO L185 Difference]: Start difference. First operand has 36 places, 37 transitions, 86 flow. Second operand 3 states and 370 transitions. [2021-06-10 19:39:22,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 110 flow [2021-06-10 19:39:22,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 102 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 19:39:22,754 INFO L241 Difference]: Finished difference. Result has 36 places, 38 transitions, 106 flow [2021-06-10 19:39:22,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2021-06-10 19:39:22,756 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2021-06-10 19:39:22,756 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 106 flow [2021-06-10 19:39:22,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2021-06-10 19:39:22,757 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:39:22,757 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:39:22,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 19:39:22,757 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:39:22,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:39:22,758 INFO L82 PathProgramCache]: Analyzing trace with hash -151717481, now seen corresponding path program 1 times [2021-06-10 19:39:22,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:39:22,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884658872] [2021-06-10 19:39:22,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:39:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:39:22,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:22,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 19:39:22,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:39:22,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884658872] [2021-06-10 19:39:22,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:39:22,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 19:39:22,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164286572] [2021-06-10 19:39:22,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 19:39:22,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:39:22,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 19:39:22,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 19:39:22,813 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2021-06-10 19:39:22,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2021-06-10 19:39:22,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:39:22,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2021-06-10 19:39:22,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:39:22,829 INFO L129 PetriNetUnfolder]: 6/63 cut-off events. [2021-06-10 19:39:22,830 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-06-10 19:39:22,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 63 events. 6/63 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 260 event pairs, 0 based on Foata normal form. 4/55 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2021-06-10 19:39:22,830 INFO L132 encePairwiseOnDemand]: 155/160 looper letters, 5 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2021-06-10 19:39:22,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 124 flow [2021-06-10 19:39:22,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 19:39:22,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 19:39:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-06-10 19:39:22,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7645833333333333 [2021-06-10 19:39:22,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-06-10 19:39:22,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-06-10 19:39:22,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:39:22,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-06-10 19:39:22,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-06-10 19:39:22,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2021-06-10 19:39:22,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 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) [2021-06-10 19:39:22,835 INFO L185 Difference]: Start difference. First operand has 36 places, 38 transitions, 106 flow. Second operand 3 states and 367 transitions. [2021-06-10 19:39:22,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 124 flow [2021-06-10 19:39:22,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 19:39:22,837 INFO L241 Difference]: Finished difference. Result has 37 places, 38 transitions, 110 flow [2021-06-10 19:39:22,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=37, PETRI_TRANSITIONS=38} [2021-06-10 19:39:22,838 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2021-06-10 19:39:22,838 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 38 transitions, 110 flow [2021-06-10 19:39:22,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2021-06-10 19:39:22,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:39:22,838 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:39:22,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 19:39:22,838 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:39:22,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:39:22,839 INFO L82 PathProgramCache]: Analyzing trace with hash 158855490, now seen corresponding path program 1 times [2021-06-10 19:39:22,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:39:22,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419386745] [2021-06-10 19:39:22,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:39:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:39:22,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:22,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:39:22,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 19:39:22,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:22,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:39:22,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419386745] [2021-06-10 19:39:22,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:39:22,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 19:39:22,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301173006] [2021-06-10 19:39:22,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 19:39:22,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:39:22,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 19:39:22,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 19:39:22,884 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 160 [2021-06-10 19:39:22,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 38 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 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) [2021-06-10 19:39:22,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:39:22,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 160 [2021-06-10 19:39:22,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:39:22,961 INFO L129 PetriNetUnfolder]: 60/199 cut-off events. [2021-06-10 19:39:22,961 INFO L130 PetriNetUnfolder]: For 72/74 co-relation queries the response was YES. [2021-06-10 19:39:22,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 199 events. 60/199 cut-off events. For 72/74 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 994 event pairs, 9 based on Foata normal form. 6/175 useless extension candidates. Maximal degree in co-relation 276. Up to 41 conditions per place. [2021-06-10 19:39:22,963 INFO L132 encePairwiseOnDemand]: 151/160 looper letters, 16 selfloop transitions, 12 changer transitions 0/54 dead transitions. [2021-06-10 19:39:22,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 209 flow [2021-06-10 19:39:22,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 19:39:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 19:39:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 612 transitions. [2021-06-10 19:39:22,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.765 [2021-06-10 19:39:22,965 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 612 transitions. [2021-06-10 19:39:22,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 612 transitions. [2021-06-10 19:39:22,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:39:22,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 612 transitions. [2021-06-10 19:39:22,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.4) internal successors, (612), 5 states have internal predecessors, (612), 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) [2021-06-10 19:39:22,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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) [2021-06-10 19:39:22,969 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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) [2021-06-10 19:39:22,969 INFO L185 Difference]: Start difference. First operand has 37 places, 38 transitions, 110 flow. Second operand 5 states and 612 transitions. [2021-06-10 19:39:22,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 209 flow [2021-06-10 19:39:22,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 203 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 19:39:22,972 INFO L241 Difference]: Finished difference. Result has 43 places, 46 transitions, 182 flow [2021-06-10 19:39:22,972 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=182, PETRI_PLACES=43, PETRI_TRANSITIONS=46} [2021-06-10 19:39:22,972 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2021-06-10 19:39:22,972 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 46 transitions, 182 flow [2021-06-10 19:39:22,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 117.25) internal successors, (469), 4 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) [2021-06-10 19:39:22,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 19:39:22,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 19:39:22,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 19:39:22,973 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 19:39:22,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 19:39:22,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1521633895, now seen corresponding path program 1 times [2021-06-10 19:39:22,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 19:39:22,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859953142] [2021-06-10 19:39:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 19:39:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 19:39:23,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:23,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:23,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 19:39:23,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:23,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 19:39:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 19:39:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 19:39:23,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 19:39:23,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859953142] [2021-06-10 19:39:23,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 19:39:23,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 19:39:23,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174849872] [2021-06-10 19:39:23,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 19:39:23,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 19:39:23,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 19:39:23,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 19:39:23,021 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 160 [2021-06-10 19:39:23,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 46 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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) [2021-06-10 19:39:23,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 19:39:23,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 160 [2021-06-10 19:39:23,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 19:39:23,074 INFO L129 PetriNetUnfolder]: 115/273 cut-off events. [2021-06-10 19:39:23,074 INFO L130 PetriNetUnfolder]: For 84/90 co-relation queries the response was YES. [2021-06-10 19:39:23,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 273 events. 115/273 cut-off events. For 84/90 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1321 event pairs, 9 based on Foata normal form. 9/253 useless extension candidates. Maximal degree in co-relation 539. Up to 49 conditions per place. [2021-06-10 19:39:23,076 INFO L132 encePairwiseOnDemand]: 152/160 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2021-06-10 19:39:23,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 266 flow [2021-06-10 19:39:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 19:39:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 19:39:23,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 601 transitions. [2021-06-10 19:39:23,078 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75125 [2021-06-10 19:39:23,078 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 601 transitions. [2021-06-10 19:39:23,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 601 transitions. [2021-06-10 19:39:23,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 19:39:23,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 601 transitions. [2021-06-10 19:39:23,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2021-06-10 19:39:23,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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) [2021-06-10 19:39:23,082 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 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) [2021-06-10 19:39:23,082 INFO L185 Difference]: Start difference. First operand has 43 places, 46 transitions, 182 flow. Second operand 5 states and 601 transitions. [2021-06-10 19:39:23,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 266 flow [2021-06-10 19:39:23,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 19:39:23,084 INFO L241 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2021-06-10 19:39:23,084 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2021-06-10 19:39:23,084 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2021-06-10 19:39:23,085 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2021-06-10 19:39:23,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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) [2021-06-10 19:39:23,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 19:39:23,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 07:39:23 BasicIcfg [2021-06-10 19:39:23,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 19:39:23,089 INFO L168 Benchmark]: Toolchain (without parser) took 4965.40 ms. Allocated memory was 341.8 MB in the beginning and 455.1 MB in the end (delta: 113.2 MB). Free memory was 305.2 MB in the beginning and 413.9 MB in the end (delta: -108.6 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.0 GB. [2021-06-10 19:39:23,089 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 341.8 MB. Free memory is still 323.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 19:39:23,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.38 ms. Allocated memory is still 341.8 MB. Free memory was 305.0 MB in the beginning and 304.5 MB in the end (delta: 450.5 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-06-10 19:39:23,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.18 ms. Allocated memory is still 341.8 MB. Free memory was 304.5 MB in the beginning and 303.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 19:39:23,090 INFO L168 Benchmark]: Boogie Preprocessor took 20.74 ms. Allocated memory is still 341.8 MB. Free memory was 303.5 MB in the beginning and 301.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 19:39:23,091 INFO L168 Benchmark]: RCFGBuilder took 454.85 ms. Allocated memory is still 341.8 MB. Free memory was 301.4 MB in the beginning and 276.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-10 19:39:23,091 INFO L168 Benchmark]: TraceAbstraction took 4054.52 ms. Allocated memory was 341.8 MB in the beginning and 455.1 MB in the end (delta: 113.2 MB). Free memory was 276.2 MB in the beginning and 413.9 MB in the end (delta: -137.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 19:39:23,093 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 341.8 MB. Free memory is still 323.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 398.38 ms. Allocated memory is still 341.8 MB. Free memory was 305.0 MB in the beginning and 304.5 MB in the end (delta: 450.5 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.18 ms. Allocated memory is still 341.8 MB. Free memory was 304.5 MB in the beginning and 303.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.74 ms. Allocated memory is still 341.8 MB. Free memory was 303.5 MB in the beginning and 301.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 454.85 ms. Allocated memory is still 341.8 MB. Free memory was 301.4 MB in the beginning and 276.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4054.52 ms. Allocated memory was 341.8 MB in the beginning and 455.1 MB in the end (delta: 113.2 MB). Free memory was 276.2 MB in the beginning and 413.9 MB in the end (delta: -137.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3171.0ms, 77 PlacesBefore, 36 PlacesAfterwards, 84 TransitionsBefore, 37 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 7 FixpointIterations, 22 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 64 TotalNumberOfCompositions, 5130 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2375, positive: 2170, positive conditional: 0, positive unconditional: 2170, negative: 205, negative conditional: 0, negative unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1239, positive: 1194, positive conditional: 0, positive unconditional: 1194, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1239, positive: 1194, positive conditional: 0, positive unconditional: 1194, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1239, positive: 1174, positive conditional: 0, positive unconditional: 1174, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 133, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2375, positive: 976, positive conditional: 0, positive unconditional: 976, negative: 160, negative conditional: 0, negative unconditional: 160, unknown: 1239, unknown conditional: 0, unknown unconditional: 1239] , Statistics on independence cache: Total cache size (in pairs): 1784, Positive cache size: 1740, Positive conditional cache size: 0, Positive unconditional cache size: 1740, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3911.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 286.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3286.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 54 SDtfs, 26 SDslu, 19 SDs, 0 SdLazy, 69 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 69.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=3, InterpolantAutomatonStates: 16, 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: 7.3ms SsaConstructionTime, 60.0ms SatisfiabilityAnalysisTime, 146.2ms InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...