/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/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 18:54:39,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 18:54:40,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 18:54:40,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 18:54:40,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 18:54:40,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 18:54:40,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 18:54:40,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 18:54:40,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 18:54:40,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 18:54:40,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 18:54:40,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 18:54:40,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 18:54:40,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 18:54:40,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 18:54:40,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 18:54:40,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 18:54:40,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 18:54:40,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 18:54:40,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 18:54:40,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 18:54:40,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 18:54:40,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 18:54:40,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 18:54:40,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 18:54:40,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 18:54:40,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 18:54:40,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 18:54:40,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 18:54:40,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 18:54:40,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 18:54:40,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 18:54:40,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 18:54:40,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 18:54:40,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 18:54:40,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 18:54:40,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 18:54:40,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 18:54:40,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 18:54:40,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 18:54:40,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 18:54:40,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-11 18:54:40,129 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 18:54:40,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 18:54:40,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 18:54:40,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 18:54:40,132 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 18:54:40,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 18:54:40,132 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 18:54:40,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 18:54:40,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 18:54:40,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 18:54:40,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 18:54:40,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 18:54:40,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 18:54:40,134 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 18:54:40,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 18:54:40,134 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 18:54:40,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 18:54:40,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 18:54:40,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 18:54:40,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 18:54:40,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 18:54:40,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 18:54:40,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 18:54:40,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 18:54:40,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 18:54:40,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 18:54:40,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 18:54:40,136 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 18:54:40,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 18:54:40,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 18:54:40,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 18:54:40,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 18:54:40,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 18:54:40,487 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 18:54:40,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2021-03-11 18:54:40,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27644e9ad/b1956989ac25450c9ec0586f543be0ad/FLAGf3658fd7e [2021-03-11 18:54:41,140 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 18:54:41,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2021-03-11 18:54:41,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27644e9ad/b1956989ac25450c9ec0586f543be0ad/FLAGf3658fd7e [2021-03-11 18:54:41,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27644e9ad/b1956989ac25450c9ec0586f543be0ad [2021-03-11 18:54:41,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 18:54:41,577 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 18:54:41,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 18:54:41,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 18:54:41,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 18:54:41,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 06:54:41" (1/1) ... [2021-03-11 18:54:41,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c9555d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:41, skipping insertion in model container [2021-03-11 18:54:41,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 06:54:41" (1/1) ... [2021-03-11 18:54:41,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 18:54:41,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 18:54:42,020 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/sync01.i[42004,42017] [2021-03-11 18:54:42,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 18:54:42,064 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 18:54:42,129 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/sync01.i[42004,42017] [2021-03-11 18:54:42,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 18:54:42,257 INFO L208 MainTranslator]: Completed translation [2021-03-11 18:54:42,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42 WrapperNode [2021-03-11 18:54:42,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 18:54:42,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 18:54:42,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 18:54:42,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 18:54:42,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 18:54:42,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 18:54:42,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 18:54:42,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 18:54:42,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... [2021-03-11 18:54:42,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 18:54:42,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 18:54:42,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 18:54:42,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 18:54:42,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 18:54:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 18:54:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 18:54:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 18:54:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 18:54:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 18:54:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 18:54:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 18:54:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 18:54:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 18:54:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 18:54:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 18:54:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 18:54:42,412 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 18:54:42,765 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 18:54:42,765 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-11 18:54:42,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 06:54:42 BoogieIcfgContainer [2021-03-11 18:54:42,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 18:54:42,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 18:54:42,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 18:54:42,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 18:54:42,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 06:54:41" (1/3) ... [2021-03-11 18:54:42,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dbe980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 06:54:42, skipping insertion in model container [2021-03-11 18:54:42,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 06:54:42" (2/3) ... [2021-03-11 18:54:42,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dbe980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 06:54:42, skipping insertion in model container [2021-03-11 18:54:42,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 06:54:42" (3/3) ... [2021-03-11 18:54:42,772 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2021-03-11 18:54:42,777 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 18:54:42,780 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 18:54:42,781 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 18:54:42,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,803 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,803 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,803 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,804 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,804 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,804 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,805 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,808 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,808 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,808 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,808 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,808 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,809 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,810 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,810 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,810 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,810 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,810 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,810 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,811 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,812 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,814 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,814 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,818 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,819 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,819 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,819 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,819 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,819 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,819 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 18:54:42,824 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 18:54:42,839 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-11 18:54:42,856 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 18:54:42,856 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 18:54:42,856 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 18:54:42,856 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 18:54:42,856 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 18:54:42,856 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 18:54:42,857 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 18:54:42,857 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 18:54:42,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 214 flow [2021-03-11 18:54:42,907 INFO L129 PetriNetUnfolder]: 6/96 cut-off events. [2021-03-11 18:54:42,907 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 18:54:42,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 96 events. 6/96 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-03-11 18:54:42,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 96 transitions, 214 flow [2021-03-11 18:54:42,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 84 transitions, 186 flow [2021-03-11 18:54:42,917 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 18:54:42,924 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 84 transitions, 186 flow [2021-03-11 18:54:42,926 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 84 transitions, 186 flow [2021-03-11 18:54:42,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 84 transitions, 186 flow [2021-03-11 18:54:42,949 INFO L129 PetriNetUnfolder]: 5/86 cut-off events. [2021-03-11 18:54:42,950 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 18:54:42,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 86 events. 5/86 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2021-03-11 18:54:42,952 INFO L116 LiptonReduction]: Number of co-enabled transitions 840 [2021-03-11 18:54:45,649 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-11 18:54:45,820 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2021-03-11 18:54:46,063 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2021-03-11 18:54:46,791 WARN L205 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 171 [2021-03-11 18:54:47,079 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-03-11 18:54:47,762 WARN L205 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 171 [2021-03-11 18:54:48,053 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-03-11 18:54:48,057 INFO L131 LiptonReduction]: Checked pairs total: 3258 [2021-03-11 18:54:48,057 INFO L133 LiptonReduction]: Total number of compositions: 59 [2021-03-11 18:54:48,059 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5145 [2021-03-11 18:54:48,068 INFO L129 PetriNetUnfolder]: 5/32 cut-off events. [2021-03-11 18:54:48,068 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 18:54:48,068 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:54:48,069 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:54:48,069 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:54:48,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:54:48,073 INFO L82 PathProgramCache]: Analyzing trace with hash -676566981, now seen corresponding path program 1 times [2021-03-11 18:54:48,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:54:48,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750076927] [2021-03-11 18:54:48,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:54:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:54:48,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 18:54:48,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 18:54:48,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:54:48,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750076927] [2021-03-11 18:54:48,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:54:48,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 18:54:48,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676439609] [2021-03-11 18:54:48,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 18:54:48,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:54:48,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 18:54:48,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 18:54:48,241 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 155 [2021-03-11 18:54:48,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 80 flow. Second operand has 2 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:54:48,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 155 [2021-03-11 18:54:48,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:54:48,266 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-11 18:54:48,267 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 18:54:48,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 31 events. 3/31 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 39. Up to 3 conditions per place. [2021-03-11 18:54:48,269 INFO L132 encePairwiseOnDemand]: 153/155 looper letters, 0 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2021-03-11 18:54:48,269 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 76 flow [2021-03-11 18:54:48,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 18:54:48,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-11 18:54:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 292 transitions. [2021-03-11 18:54:48,283 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9419354838709677 [2021-03-11 18:54:48,284 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 292 transitions. [2021-03-11 18:54:48,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 292 transitions. [2021-03-11 18:54:48,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:54:48,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 292 transitions. [2021-03-11 18:54:48,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,298 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,300 INFO L185 Difference]: Start difference. First operand has 32 places, 31 transitions, 80 flow. Second operand 2 states and 292 transitions. [2021-03-11 18:54:48,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 76 flow [2021-03-11 18:54:48,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 29 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 18:54:48,304 INFO L241 Difference]: Finished difference. Result has 29 places, 29 transitions, 64 flow [2021-03-11 18:54:48,305 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2021-03-11 18:54:48,306 INFO L335 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2021-03-11 18:54:48,306 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 64 flow [2021-03-11 18:54:48,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,306 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:54:48,307 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:54:48,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 18:54:48,308 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:54:48,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:54:48,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1752608736, now seen corresponding path program 1 times [2021-03-11 18:54:48,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:54:48,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188941283] [2021-03-11 18:54:48,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:54:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:54:48,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 18:54:48,429 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-03-11 18:54:48,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 18:54:48,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 18:54:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:54:48,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188941283] [2021-03-11 18:54:48,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:54:48,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 18:54:48,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991412861] [2021-03-11 18:54:48,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 18:54:48,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:54:48,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 18:54:48,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 18:54:48,442 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 155 [2021-03-11 18:54:48,443 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:54:48,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 155 [2021-03-11 18:54:48,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:54:48,471 INFO L129 PetriNetUnfolder]: 9/44 cut-off events. [2021-03-11 18:54:48,471 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 18:54:48,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 44 events. 9/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 2 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 65. Up to 10 conditions per place. [2021-03-11 18:54:48,472 INFO L132 encePairwiseOnDemand]: 151/155 looper letters, 8 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2021-03-11 18:54:48,472 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 80 flow [2021-03-11 18:54:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 18:54:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 18:54:48,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2021-03-11 18:54:48,474 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8064516129032258 [2021-03-11 18:54:48,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2021-03-11 18:54:48,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2021-03-11 18:54:48,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:54:48,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2021-03-11 18:54:48,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,477 INFO L185 Difference]: Start difference. First operand has 29 places, 29 transitions, 64 flow. Second operand 3 states and 375 transitions. [2021-03-11 18:54:48,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 80 flow [2021-03-11 18:54:48,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 18:54:48,479 INFO L241 Difference]: Finished difference. Result has 30 places, 26 transitions, 66 flow [2021-03-11 18:54:48,479 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2021-03-11 18:54:48,479 INFO L335 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-11 18:54:48,480 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 66 flow [2021-03-11 18:54:48,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,480 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:54:48,480 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:54:48,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 18:54:48,480 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:54:48,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:54:48,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1890237370, now seen corresponding path program 1 times [2021-03-11 18:54:48,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:54:48,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864889357] [2021-03-11 18:54:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:54:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:54:48,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 18:54:48,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:54:48,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 18:54:48,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:54:48,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864889357] [2021-03-11 18:54:48,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:54:48,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 18:54:48,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380917727] [2021-03-11 18:54:48,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 18:54:48,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:54:48,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 18:54:48,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 18:54:48,545 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 155 [2021-03-11 18:54:48,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:54:48,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 155 [2021-03-11 18:54:48,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:54:48,566 INFO L129 PetriNetUnfolder]: 4/37 cut-off events. [2021-03-11 18:54:48,567 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 18:54:48,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 37 events. 4/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 1 based on Foata normal form. 3/40 useless extension candidates. Maximal degree in co-relation 57. Up to 7 conditions per place. [2021-03-11 18:54:48,567 INFO L132 encePairwiseOnDemand]: 149/155 looper letters, 1 selfloop transitions, 6 changer transitions 0/26 dead transitions. [2021-03-11 18:54:48,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 80 flow [2021-03-11 18:54:48,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 18:54:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 18:54:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2021-03-11 18:54:48,569 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7053763440860215 [2021-03-11 18:54:48,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2021-03-11 18:54:48,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2021-03-11 18:54:48,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:54:48,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2021-03-11 18:54:48,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,572 INFO L185 Difference]: Start difference. First operand has 30 places, 26 transitions, 66 flow. Second operand 3 states and 328 transitions. [2021-03-11 18:54:48,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 80 flow [2021-03-11 18:54:48,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 18:54:48,573 INFO L241 Difference]: Finished difference. Result has 30 places, 26 transitions, 74 flow [2021-03-11 18:54:48,573 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2021-03-11 18:54:48,573 INFO L335 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-11 18:54:48,574 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 74 flow [2021-03-11 18:54:48,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,574 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:54:48,574 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:54:48,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 18:54:48,574 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:54:48,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:54:48,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1427391008, now seen corresponding path program 2 times [2021-03-11 18:54:48,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:54:48,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860725139] [2021-03-11 18:54:48,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:54:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:54:48,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 18:54:48,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:54:48,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 18:54:48,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-11 18:54:48,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 18:54:48,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 18:54:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:54:48,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860725139] [2021-03-11 18:54:48,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:54:48,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 18:54:48,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263663642] [2021-03-11 18:54:48,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 18:54:48,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:54:48,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 18:54:48,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-11 18:54:48,643 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 155 [2021-03-11 18:54:48,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:54:48,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 155 [2021-03-11 18:54:48,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:54:48,733 INFO L129 PetriNetUnfolder]: 21/78 cut-off events. [2021-03-11 18:54:48,734 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 18:54:48,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 78 events. 21/78 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 191 event pairs, 4 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 159. Up to 21 conditions per place. [2021-03-11 18:54:48,735 INFO L132 encePairwiseOnDemand]: 148/155 looper letters, 14 selfloop transitions, 6 changer transitions 3/32 dead transitions. [2021-03-11 18:54:48,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 133 flow [2021-03-11 18:54:48,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 18:54:48,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 18:54:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 423 transitions. [2021-03-11 18:54:48,737 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.3898617511520737 [2021-03-11 18:54:48,737 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 423 transitions. [2021-03-11 18:54:48,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 423 transitions. [2021-03-11 18:54:48,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:54:48,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 423 transitions. [2021-03-11 18:54:48,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 60.42857142857143) internal successors, (423), 7 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 155.0) internal successors, (1240), 8 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,741 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 155.0) internal successors, (1240), 8 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,741 INFO L185 Difference]: Start difference. First operand has 30 places, 26 transitions, 74 flow. Second operand 7 states and 423 transitions. [2021-03-11 18:54:48,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 133 flow [2021-03-11 18:54:48,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 127 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 18:54:48,743 INFO L241 Difference]: Finished difference. Result has 35 places, 25 transitions, 77 flow [2021-03-11 18:54:48,744 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=77, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2021-03-11 18:54:48,744 INFO L335 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-11 18:54:48,744 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 77 flow [2021-03-11 18:54:48,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,744 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 18:54:48,745 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 18:54:48,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 18:54:48,745 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 18:54:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 18:54:48,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1226129746, now seen corresponding path program 2 times [2021-03-11 18:54:48,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 18:54:48,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688515858] [2021-03-11 18:54:48,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 18:54:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 18:54:48,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 18:54:48,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 18:54:48,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 18:54:48,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:54:48,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 18:54:48,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:54:48,814 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-11 18:54:48,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 18:54:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 18:54:48,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688515858] [2021-03-11 18:54:48,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 18:54:48,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 18:54:48,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394107409] [2021-03-11 18:54:48,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 18:54:48,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 18:54:48,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 18:54:48,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-11 18:54:48,821 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 155 [2021-03-11 18:54:48,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 77 flow. Second operand has 7 states, 7 states have (on average 116.57142857142857) internal successors, (816), 7 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 18:54:48,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 155 [2021-03-11 18:54:48,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 18:54:48,874 INFO L129 PetriNetUnfolder]: 4/41 cut-off events. [2021-03-11 18:54:48,874 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 18:54:48,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 41 events. 4/41 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 1 based on Foata normal form. 2/43 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-03-11 18:54:48,875 INFO L132 encePairwiseOnDemand]: 147/155 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2021-03-11 18:54:48,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 24 transitions, 97 flow [2021-03-11 18:54:48,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 18:54:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 18:54:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 818 transitions. [2021-03-11 18:54:48,877 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7539170506912443 [2021-03-11 18:54:48,878 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 818 transitions. [2021-03-11 18:54:48,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 818 transitions. [2021-03-11 18:54:48,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 18:54:48,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 818 transitions. [2021-03-11 18:54:48,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 116.85714285714286) internal successors, (818), 7 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 155.0) internal successors, (1240), 8 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,883 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 155.0) internal successors, (1240), 8 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,883 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 77 flow. Second operand 7 states and 818 transitions. [2021-03-11 18:54:48,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 24 transitions, 97 flow [2021-03-11 18:54:48,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 24 transitions, 85 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-11 18:54:48,884 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2021-03-11 18:54:48,884 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2021-03-11 18:54:48,884 INFO L335 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2021-03-11 18:54:48,884 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2021-03-11 18:54:48,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 116.57142857142857) internal successors, (816), 7 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 18:54:48,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 18:54:48,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 06:54:48 BasicIcfg [2021-03-11 18:54:48,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 18:54:48,889 INFO L168 Benchmark]: Toolchain (without parser) took 7315.50 ms. Allocated memory was 360.7 MB in the beginning and 459.3 MB in the end (delta: 98.6 MB). Free memory was 323.5 MB in the beginning and 248.0 MB in the end (delta: 75.4 MB). Peak memory consumption was 175.6 MB. Max. memory is 16.0 GB. [2021-03-11 18:54:48,889 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 360.7 MB. Free memory was 342.3 MB in the beginning and 342.2 MB in the end (delta: 69.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 18:54:48,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.38 ms. Allocated memory is still 360.7 MB. Free memory was 322.8 MB in the beginning and 302.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.0 GB. [2021-03-11 18:54:48,890 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.66 ms. Allocated memory is still 360.7 MB. Free memory was 301.8 MB in the beginning and 299.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 18:54:48,891 INFO L168 Benchmark]: Boogie Preprocessor took 19.95 ms. Allocated memory is still 360.7 MB. Free memory was 299.7 MB in the beginning and 298.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 18:54:48,891 INFO L168 Benchmark]: RCFGBuilder took 428.13 ms. Allocated memory is still 360.7 MB. Free memory was 298.7 MB in the beginning and 271.4 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-11 18:54:48,892 INFO L168 Benchmark]: TraceAbstraction took 6120.38 ms. Allocated memory was 360.7 MB in the beginning and 459.3 MB in the end (delta: 98.6 MB). Free memory was 271.4 MB in the beginning and 248.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 125.1 MB. Max. memory is 16.0 GB. [2021-03-11 18:54:48,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 360.7 MB. Free memory was 342.3 MB in the beginning and 342.2 MB in the end (delta: 69.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 679.38 ms. Allocated memory is still 360.7 MB. Free memory was 322.8 MB in the beginning and 302.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 58.66 ms. Allocated memory is still 360.7 MB. Free memory was 301.8 MB in the beginning and 299.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.95 ms. Allocated memory is still 360.7 MB. Free memory was 299.7 MB in the beginning and 298.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 428.13 ms. Allocated memory is still 360.7 MB. Free memory was 298.7 MB in the beginning and 271.4 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6120.38 ms. Allocated memory was 360.7 MB in the beginning and 459.3 MB in the end (delta: 98.6 MB). Free memory was 271.4 MB in the beginning and 248.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 125.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5131.8ms, 85 PlacesBefore, 32 PlacesAfterwards, 84 TransitionsBefore, 31 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, 3258 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2044, positive: 1910, positive conditional: 0, positive unconditional: 1910, negative: 134, negative conditional: 0, negative unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 659, positive: 622, positive conditional: 0, positive unconditional: 622, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 659, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 186, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2044, positive: 1288, positive conditional: 0, positive unconditional: 1288, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 659, unknown conditional: 0, unknown unconditional: 659] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 174, Positive conditional cache size: 0, Positive unconditional cache size: 174, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - PositiveResult [Line: 966]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 6032.8ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 307.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5206.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 42 SDslu, 16 SDs, 0 SdLazy, 97 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 98.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.7ms SsaConstructionTime, 73.5ms SatisfiabilityAnalysisTime, 288.3ms InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...