/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-wmm/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:50:54,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:50:54,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:50:54,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 19:50:54,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 19:50:54,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 19:50:54,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 19:50:54,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 19:50:54,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 19:50:54,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 19:50:54,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 19:50:54,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 19:50:54,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:50:54,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:50:55,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:50:55,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:50:55,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:50:55,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:50:55,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:50:55,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:50:55,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:50:55,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:50:55,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:50:55,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:50:55,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 19:50:55,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 19:50:55,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 19:50:55,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 19:50:55,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 19:50:55,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 19:50:55,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 19:50:55,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 19:50:55,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 19:50:55,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 19:50:55,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 19:50:55,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 19:50:55,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 19:50:55,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 19:50:55,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:50:55,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:50:55,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:50:55,038 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 [2021-03-24 19:50:55,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:50:55,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:50:55,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:50:55,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:50:55,067 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:50:55,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:50:55,072 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:50:55,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:50:55,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:50:55,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:50:55,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:50:55,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:50:55,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:50:55,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:50:55,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:50:55,073 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:50:55,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:50:55,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:50:55,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:50:55,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:50:55,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:50:55,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:50:55,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:50:55,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:50:55,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:50:55,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:50:55,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:50:55,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:50:55,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:50:55,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:50:55,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:50:55,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:50:55,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:50:55,372 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:50:55,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-03-24 19:50:55,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee00c95ac/518208de720b45d98a83f0e32334ad37/FLAG480b491b8 [2021-03-24 19:50:55,893 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:50:55,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2021-03-24 19:50:55,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee00c95ac/518208de720b45d98a83f0e32334ad37/FLAG480b491b8 [2021-03-24 19:50:56,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee00c95ac/518208de720b45d98a83f0e32334ad37 [2021-03-24 19:50:56,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:50:56,268 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:50:56,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:50:56,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:50:56,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:50:56,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167a9f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56, skipping insertion in model container [2021-03-24 19:50:56,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:50:56,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:50:56,455 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-wmm/safe008_tso.oepc.i[950,963] [2021-03-24 19:50:56,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:50:56,640 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:50:56,653 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-wmm/safe008_tso.oepc.i[950,963] [2021-03-24 19:50:56,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:50:56,753 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:50:56,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56 WrapperNode [2021-03-24 19:50:56,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:50:56,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:50:56,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:50:56,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:50:56,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:50:56,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:50:56,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:50:56,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:50:56,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... [2021-03-24 19:50:56,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:50:56,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:50:56,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:50:56,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:50:56,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:50:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:50:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:50:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:50:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:50:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:50:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:50:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:50:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:50:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 19:50:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 19:50:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:50:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:50:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:50:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:50:56,867 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:50:57,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:50:57,247 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-24 19:50:57,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:50:57 BoogieIcfgContainer [2021-03-24 19:50:57,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:50:57,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:50:57,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:50:57,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:50:57,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:50:56" (1/3) ... [2021-03-24 19:50:57,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d35927c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:50:57, skipping insertion in model container [2021-03-24 19:50:57,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:50:56" (2/3) ... [2021-03-24 19:50:57,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d35927c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:50:57, skipping insertion in model container [2021-03-24 19:50:57,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:50:57" (3/3) ... [2021-03-24 19:50:57,256 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2021-03-24 19:50:57,261 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:50:57,265 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 19:50:57,266 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:50:57,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,302 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,302 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,302 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,302 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,313 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,314 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,315 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,322 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,322 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,328 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,328 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:50:57,331 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:50:57,347 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-24 19:50:57,374 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:50:57,375 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:50:57,375 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:50:57,375 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:50:57,375 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:50:57,375 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:50:57,375 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:50:57,375 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:50:57,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-24 19:50:57,446 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-24 19:50:57,446 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:50:57,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-24 19:50:57,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-24 19:50:57,456 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-24 19:50:57,457 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:50:57,469 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-24 19:50:57,472 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-24 19:50:57,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-24 19:50:57,486 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-24 19:50:57,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:50:57,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-24 19:50:57,489 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-24 19:50:59,062 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-24 19:50:59,062 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-24 19:50:59,064 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1608 [2021-03-24 19:50:59,073 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-24 19:50:59,073 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:50:59,073 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:59,074 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:59,074 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:59,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash 775848287, now seen corresponding path program 1 times [2021-03-24 19:50:59,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:59,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251676868] [2021-03-24 19:50:59,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:59,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:59,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251676868] [2021-03-24 19:50:59,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:59,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:50:59,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036862358] [2021-03-24 19:50:59,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:50:59,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:59,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:50:59,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:50:59,370 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 116 [2021-03-24 19:50:59,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:59,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 116 [2021-03-24 19:50:59,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:59,405 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-24 19:50:59,412 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:50:59,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-24 19:50:59,414 INFO L132 encePairwiseOnDemand]: 112/116 looper letters, 2 selfloop transitions, 2 changer transitions 2/23 dead transitions. [2021-03-24 19:50:59,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 23 transitions, 67 flow [2021-03-24 19:50:59,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:59,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 488 transitions. [2021-03-24 19:50:59,429 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8413793103448276 [2021-03-24 19:50:59,430 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 488 transitions. [2021-03-24 19:50:59,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 488 transitions. [2021-03-24 19:50:59,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:59,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 488 transitions. [2021-03-24 19:50:59,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.6) internal successors, (488), 5 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,444 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,446 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 5 states and 488 transitions. [2021-03-24 19:50:59,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 23 transitions, 67 flow [2021-03-24 19:50:59,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 23 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 19:50:59,450 INFO L241 Difference]: Finished difference. Result has 35 places, 21 transitions, 60 flow [2021-03-24 19:50:59,452 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=21} [2021-03-24 19:50:59,453 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-24 19:50:59,453 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 21 transitions, 60 flow [2021-03-24 19:50:59,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,453 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:59,453 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:59,454 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:50:59,454 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:59,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:59,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1718526481, now seen corresponding path program 1 times [2021-03-24 19:50:59,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:59,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831917500] [2021-03-24 19:50:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:59,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:59,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:59,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831917500] [2021-03-24 19:50:59,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:59,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:50:59,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506786257] [2021-03-24 19:50:59,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:50:59,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:59,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:50:59,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:50:59,521 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 116 [2021-03-24 19:50:59,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 21 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 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) [2021-03-24 19:50:59,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:59,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 116 [2021-03-24 19:50:59,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:59,562 INFO L129 PetriNetUnfolder]: 1/29 cut-off events. [2021-03-24 19:50:59,563 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-03-24 19:50:59,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 29 events. 1/29 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 47 event pairs, 0 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 52. Up to 6 conditions per place. [2021-03-24 19:50:59,563 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 2 selfloop transitions, 4 changer transitions 4/25 dead transitions. [2021-03-24 19:50:59,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 25 transitions, 95 flow [2021-03-24 19:50:59,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 19:50:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 19:50:59,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 564 transitions. [2021-03-24 19:50:59,566 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8103448275862069 [2021-03-24 19:50:59,566 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 564 transitions. [2021-03-24 19:50:59,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 564 transitions. [2021-03-24 19:50:59,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:59,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 564 transitions. [2021-03-24 19:50:59,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,572 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,572 INFO L185 Difference]: Start difference. First operand has 35 places, 21 transitions, 60 flow. Second operand 6 states and 564 transitions. [2021-03-24 19:50:59,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 25 transitions, 95 flow [2021-03-24 19:50:59,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 85 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-24 19:50:59,573 INFO L241 Difference]: Finished difference. Result has 38 places, 21 transitions, 74 flow [2021-03-24 19:50:59,573 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=38, PETRI_TRANSITIONS=21} [2021-03-24 19:50:59,574 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-24 19:50:59,574 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 21 transitions, 74 flow [2021-03-24 19:50:59,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 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) [2021-03-24 19:50:59,574 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:59,575 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:59,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:50:59,575 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:59,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:59,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1858843287, now seen corresponding path program 1 times [2021-03-24 19:50:59,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:59,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505113736] [2021-03-24 19:50:59,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:59,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:59,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,640 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-24 19:50:59,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:50:59,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:59,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505113736] [2021-03-24 19:50:59,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:59,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:50:59,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988226490] [2021-03-24 19:50:59,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:50:59,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:59,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:50:59,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:50:59,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-24 19:50:59,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 21 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:59,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-24 19:50:59,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:59,728 INFO L129 PetriNetUnfolder]: 13/61 cut-off events. [2021-03-24 19:50:59,729 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2021-03-24 19:50:59,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 61 events. 13/61 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 193 event pairs, 3 based on Foata normal form. 8/67 useless extension candidates. Maximal degree in co-relation 144. Up to 14 conditions per place. [2021-03-24 19:50:59,731 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 6 selfloop transitions, 5 changer transitions 12/34 dead transitions. [2021-03-24 19:50:59,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 176 flow [2021-03-24 19:50:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:50:59,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:50:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 690 transitions. [2021-03-24 19:50:59,735 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7435344827586207 [2021-03-24 19:50:59,735 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 690 transitions. [2021-03-24 19:50:59,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 690 transitions. [2021-03-24 19:50:59,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:59,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 690 transitions. [2021-03-24 19:50:59,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 86.25) internal successors, (690), 8 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 116.0) internal successors, (1044), 9 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,744 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 116.0) internal successors, (1044), 9 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,744 INFO L185 Difference]: Start difference. First operand has 38 places, 21 transitions, 74 flow. Second operand 8 states and 690 transitions. [2021-03-24 19:50:59,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 176 flow [2021-03-24 19:50:59,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 34 transitions, 138 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-03-24 19:50:59,746 INFO L241 Difference]: Finished difference. Result has 43 places, 21 transitions, 85 flow [2021-03-24 19:50:59,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=85, PETRI_PLACES=43, PETRI_TRANSITIONS=21} [2021-03-24 19:50:59,747 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 12 predicate places. [2021-03-24 19:50:59,747 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 21 transitions, 85 flow [2021-03-24 19:50:59,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,747 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:59,747 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:59,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:50:59,748 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:59,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:59,748 INFO L82 PathProgramCache]: Analyzing trace with hash 912940626, now seen corresponding path program 1 times [2021-03-24 19:50:59,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:59,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298753542] [2021-03-24 19:50:59,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:50:59,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:50:59,855 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:50:59,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:50:59,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:50:59,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:50:59,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:50:59,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298753542] [2021-03-24 19:50:59,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:50:59,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:50:59,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498439678] [2021-03-24 19:50:59,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:50:59,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:50:59,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:50:59,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:50:59,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 116 [2021-03-24 19:50:59,870 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 21 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:50:59,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 116 [2021-03-24 19:50:59,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:50:59,918 INFO L129 PetriNetUnfolder]: 23/72 cut-off events. [2021-03-24 19:50:59,919 INFO L130 PetriNetUnfolder]: For 80/91 co-relation queries the response was YES. [2021-03-24 19:50:59,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 72 events. 23/72 cut-off events. For 80/91 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 230 event pairs, 9 based on Foata normal form. 5/72 useless extension candidates. Maximal degree in co-relation 153. Up to 39 conditions per place. [2021-03-24 19:50:59,920 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 5 selfloop transitions, 3 changer transitions 8/31 dead transitions. [2021-03-24 19:50:59,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 31 transitions, 137 flow [2021-03-24 19:50:59,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:50:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:50:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 448 transitions. [2021-03-24 19:50:59,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7724137931034483 [2021-03-24 19:50:59,923 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 448 transitions. [2021-03-24 19:50:59,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 448 transitions. [2021-03-24 19:50:59,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:50:59,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 448 transitions. [2021-03-24 19:50:59,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,927 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,927 INFO L185 Difference]: Start difference. First operand has 43 places, 21 transitions, 85 flow. Second operand 5 states and 448 transitions. [2021-03-24 19:50:59,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 31 transitions, 137 flow [2021-03-24 19:50:59,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 31 transitions, 116 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-24 19:50:59,929 INFO L241 Difference]: Finished difference. Result has 40 places, 23 transitions, 95 flow [2021-03-24 19:50:59,929 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=95, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2021-03-24 19:50:59,930 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-24 19:50:59,930 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 23 transitions, 95 flow [2021-03-24 19:50:59,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:50:59,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:50:59,930 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:50:59,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:50:59,931 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:50:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:50:59,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1249522344, now seen corresponding path program 1 times [2021-03-24 19:50:59,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:50:59,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136278606] [2021-03-24 19:50:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:50:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:00,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:00,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:00,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:00,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:00,018 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:51:00,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:51:00,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:00,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:00,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136278606] [2021-03-24 19:51:00,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:00,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:51:00,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273127782] [2021-03-24 19:51:00,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:51:00,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:00,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:51:00,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:51:00,030 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 116 [2021-03-24 19:51:00,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 23 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:00,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 116 [2021-03-24 19:51:00,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:00,090 INFO L129 PetriNetUnfolder]: 9/44 cut-off events. [2021-03-24 19:51:00,091 INFO L130 PetriNetUnfolder]: For 72/115 co-relation queries the response was YES. [2021-03-24 19:51:00,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 44 events. 9/44 cut-off events. For 72/115 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 97 event pairs, 1 based on Foata normal form. 10/52 useless extension candidates. Maximal degree in co-relation 125. Up to 27 conditions per place. [2021-03-24 19:51:00,092 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 3 selfloop transitions, 5 changer transitions 10/33 dead transitions. [2021-03-24 19:51:00,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 33 transitions, 189 flow [2021-03-24 19:51:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 19:51:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 19:51:00,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 536 transitions. [2021-03-24 19:51:00,094 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7701149425287356 [2021-03-24 19:51:00,094 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 536 transitions. [2021-03-24 19:51:00,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 536 transitions. [2021-03-24 19:51:00,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:00,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 536 transitions. [2021-03-24 19:51:00,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,097 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,097 INFO L185 Difference]: Start difference. First operand has 40 places, 23 transitions, 95 flow. Second operand 6 states and 536 transitions. [2021-03-24 19:51:00,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 33 transitions, 189 flow [2021-03-24 19:51:00,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 33 transitions, 184 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-24 19:51:00,100 INFO L241 Difference]: Finished difference. Result has 44 places, 23 transitions, 114 flow [2021-03-24 19:51:00,100 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=114, PETRI_PLACES=44, PETRI_TRANSITIONS=23} [2021-03-24 19:51:00,100 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-24 19:51:00,101 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 23 transitions, 114 flow [2021-03-24 19:51:00,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:00,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:00,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:51:00,102 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:00,104 INFO L82 PathProgramCache]: Analyzing trace with hash 735655888, now seen corresponding path program 1 times [2021-03-24 19:51:00,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:00,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046602275] [2021-03-24 19:51:00,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:00,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:00,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:00,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:00,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:00,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:00,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:00,167 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:51:00,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:51:00,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:00,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:00,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:00,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046602275] [2021-03-24 19:51:00,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:00,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:51:00,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944851201] [2021-03-24 19:51:00,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:51:00,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:00,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:51:00,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:51:00,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 116 [2021-03-24 19:51:00,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 23 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:00,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 116 [2021-03-24 19:51:00,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:00,208 INFO L129 PetriNetUnfolder]: 1/23 cut-off events. [2021-03-24 19:51:00,208 INFO L130 PetriNetUnfolder]: For 57/79 co-relation queries the response was YES. [2021-03-24 19:51:00,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 23 events. 1/23 cut-off events. For 57/79 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 7/30 useless extension candidates. Maximal degree in co-relation 70. Up to 9 conditions per place. [2021-03-24 19:51:00,209 INFO L132 encePairwiseOnDemand]: 110/116 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2021-03-24 19:51:00,209 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 23 transitions, 134 flow [2021-03-24 19:51:00,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:51:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:51:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 612 transitions. [2021-03-24 19:51:00,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7536945812807881 [2021-03-24 19:51:00,211 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 612 transitions. [2021-03-24 19:51:00,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 612 transitions. [2021-03-24 19:51:00,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:00,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 612 transitions. [2021-03-24 19:51:00,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.42857142857143) internal successors, (612), 7 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) [2021-03-24 19:51:00,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,215 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,215 INFO L185 Difference]: Start difference. First operand has 44 places, 23 transitions, 114 flow. Second operand 7 states and 612 transitions. [2021-03-24 19:51:00,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 23 transitions, 134 flow [2021-03-24 19:51:00,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 23 transitions, 109 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-03-24 19:51:00,217 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-03-24 19:51:00,217 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-03-24 19:51:00,217 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-24 19:51:00,217 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2021-03-24 19:51:00,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:00,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:51:00,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:51:00 BasicIcfg [2021-03-24 19:51:00,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:51:00,222 INFO L168 Benchmark]: Toolchain (without parser) took 3953.15 ms. Allocated memory was 339.7 MB in the beginning and 408.9 MB in the end (delta: 69.2 MB). Free memory was 303.0 MB in the beginning and 334.3 MB in the end (delta: -31.3 MB). Peak memory consumption was 39.6 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:00,222 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 339.7 MB. Free memory was 321.2 MB in the beginning and 321.1 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:51:00,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.34 ms. Allocated memory is still 339.7 MB. Free memory was 302.8 MB in the beginning and 301.9 MB in the end (delta: 888.7 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:00,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.64 ms. Allocated memory is still 339.7 MB. Free memory was 301.9 MB in the beginning and 299.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:00,223 INFO L168 Benchmark]: Boogie Preprocessor took 18.90 ms. Allocated memory is still 339.7 MB. Free memory was 299.8 MB in the beginning and 298.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:00,224 INFO L168 Benchmark]: RCFGBuilder took 442.77 ms. Allocated memory is still 339.7 MB. Free memory was 298.8 MB in the beginning and 274.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:00,224 INFO L168 Benchmark]: TraceAbstraction took 2970.36 ms. Allocated memory was 339.7 MB in the beginning and 408.9 MB in the end (delta: 69.2 MB). Free memory was 273.6 MB in the beginning and 334.3 MB in the end (delta: -60.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:00,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 339.7 MB. Free memory was 321.2 MB in the beginning and 321.1 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 484.34 ms. Allocated memory is still 339.7 MB. Free memory was 302.8 MB in the beginning and 301.9 MB in the end (delta: 888.7 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.64 ms. Allocated memory is still 339.7 MB. Free memory was 301.9 MB in the beginning and 299.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.90 ms. Allocated memory is still 339.7 MB. Free memory was 299.8 MB in the beginning and 298.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 442.77 ms. Allocated memory is still 339.7 MB. Free memory was 298.8 MB in the beginning and 274.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2970.36 ms. Allocated memory was 339.7 MB in the beginning and 408.9 MB in the end (delta: 69.2 MB). Free memory was 273.6 MB in the beginning and 334.3 MB in the end (delta: -60.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1590.4ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 860, positive: 813, positive conditional: 0, positive unconditional: 813, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 627, positive: 597, positive conditional: 0, positive unconditional: 597, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 627, positive: 597, positive conditional: 0, positive unconditional: 597, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 627, positive: 591, positive conditional: 0, positive unconditional: 591, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 146, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 860, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 627, unknown conditional: 0, unknown unconditional: 627] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - PositiveResult [Line: 18]: 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 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2848.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 409.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1693.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 33 SDtfs, 37 SDslu, 41 SDs, 0 SdLazy, 108 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 129.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=5, InterpolantAutomatonStates: 37, 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: 22.6ms SsaConstructionTime, 198.1ms SatisfiabilityAnalysisTime, 364.1ms InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...