/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:06:43,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:06:43,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:06:43,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:06:43,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:06:43,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:06:43,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:06:43,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:06:43,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:06:43,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:06:43,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:06:43,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:06:43,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:06:43,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:06:43,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:06:43,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:06:43,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:06:43,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:06:43,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:06:43,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:06:43,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:06:43,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:06:43,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:06:43,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:06:43,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:06:43,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:06:43,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:06:43,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:06:43,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:06:43,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:06:43,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:06:44,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:06:44,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:06:44,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:06:44,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:06:44,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:06:44,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:06:44,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:06:44,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:06:44,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:06:44,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:06:44,009 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-SemanticLooper.epf [2020-10-16 05:06:44,066 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:06:44,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:06:44,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:06:44,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:06:44,070 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:06:44,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:06:44,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:06:44,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:06:44,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:06:44,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:06:44,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:06:44,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:06:44,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:06:44,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:06:44,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:06:44,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:06:44,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:06:44,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:06:44,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:06:44,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:06:44,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:06:44,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:06:44,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:06:44,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:06:44,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:06:44,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:06:44,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:06:44,077 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:06:44,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:06:44,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:06:44,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:06:44,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:06:44,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:06:44,396 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:06:44,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i [2020-10-16 05:06:44,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4635c9a1c/db1658f6cdc547bc9b9eb6b3af0b0880/FLAGb02cc1c5f [2020-10-16 05:06:45,023 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:06:45,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i [2020-10-16 05:06:45,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4635c9a1c/db1658f6cdc547bc9b9eb6b3af0b0880/FLAGb02cc1c5f [2020-10-16 05:06:45,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4635c9a1c/db1658f6cdc547bc9b9eb6b3af0b0880 [2020-10-16 05:06:45,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:06:45,348 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:06:45,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:06:45,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:06:45,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:06:45,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:06:45" (1/1) ... [2020-10-16 05:06:45,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc7f69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:45, skipping insertion in model container [2020-10-16 05:06:45,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:06:45" (1/1) ... [2020-10-16 05:06:45,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:06:45,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:06:45,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:06:45,940 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:06:45,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:06:46,057 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:06:46,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46 WrapperNode [2020-10-16 05:06:46,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:06:46,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:06:46,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:06:46,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:06:46,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:06:46,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:06:46,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:06:46,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:06:46,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (1/1) ... [2020-10-16 05:06:46,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:06:46,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:06:46,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:06:46,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:06:46,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (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 [2020-10-16 05:06:46,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:06:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:06:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:06:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:06:46,209 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 05:06:46,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 05:06:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 05:06:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 05:06:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 05:06:46,210 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 05:06:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:06:46,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:06:46,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:06:46,212 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:06:46,564 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:06:46,564 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 05:06:46,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:06:46 BoogieIcfgContainer [2020-10-16 05:06:46,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:06:46,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:06:46,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:06:46,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:06:46,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:06:45" (1/3) ... [2020-10-16 05:06:46,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51474c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:06:46, skipping insertion in model container [2020-10-16 05:06:46,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:06:46" (2/3) ... [2020-10-16 05:06:46,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51474c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:06:46, skipping insertion in model container [2020-10-16 05:06:46,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:06:46" (3/3) ... [2020-10-16 05:06:46,575 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.opt.i [2020-10-16 05:06:46,586 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:06:46,594 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:06:46,595 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:06:46,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,622 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,622 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,622 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,623 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,624 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,624 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,625 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,626 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,627 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,627 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,628 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,631 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,636 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,636 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,636 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,637 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,642 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,643 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,645 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,646 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,646 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:06:46,664 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 05:06:46,685 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:06:46,685 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:06:46,686 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:06:46,686 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:06:46,686 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:06:46,686 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:06:46,686 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:06:46,686 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:06:46,700 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 05:06:46,744 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-16 05:06:46,744 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:06:46,749 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 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. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 05:06:46,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 68 transitions, 151 flow [2020-10-16 05:06:46,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 54 transitions, 117 flow [2020-10-16 05:06:46,758 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:06:46,760 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions, 117 flow [2020-10-16 05:06:46,763 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 54 transitions, 117 flow [2020-10-16 05:06:46,764 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions, 117 flow [2020-10-16 05:06:46,788 INFO L129 PetriNetUnfolder]: 1/54 cut-off events. [2020-10-16 05:06:46,789 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:06:46,789 INFO L80 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 54 events. 1/54 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. 0/53 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2020-10-16 05:06:46,791 INFO L117 LiptonReduction]: Number of co-enabled transitions 804 [2020-10-16 05:06:48,153 INFO L132 LiptonReduction]: Checked pairs total: 1499 [2020-10-16 05:06:48,154 INFO L134 LiptonReduction]: Total number of compositions: 41 [2020-10-16 05:06:48,157 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1401 [2020-10-16 05:06:48,166 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2020-10-16 05:06:48,166 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:06:48,166 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:06:48,167 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:06:48,168 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:06:48,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:06:48,174 INFO L82 PathProgramCache]: Analyzing trace with hash 610460001, now seen corresponding path program 1 times [2020-10-16 05:06:48,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:06:48,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762217991] [2020-10-16 05:06:48,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:06:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:06:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:06:48,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762217991] [2020-10-16 05:06:48,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:06:48,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:06:48,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288097115] [2020-10-16 05:06:48,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:06:48,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:06:48,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:06:48,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:06:48,472 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2020-10-16 05:06:48,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states. [2020-10-16 05:06:48,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:06:48,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2020-10-16 05:06:48,477 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:06:48,502 INFO L129 PetriNetUnfolder]: 3/23 cut-off events. [2020-10-16 05:06:48,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:06:48,503 INFO L80 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 23 events. 3/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 1 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 34. Up to 10 conditions per place. [2020-10-16 05:06:48,504 INFO L132 encePairwiseOnDemand]: 105/109 looper letters, 3 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2020-10-16 05:06:48,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 57 flow [2020-10-16 05:06:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:06:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:06:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2020-10-16 05:06:48,522 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8379204892966361 [2020-10-16 05:06:48,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2020-10-16 05:06:48,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2020-10-16 05:06:48,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:06:48,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2020-10-16 05:06:48,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:06:48,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:06:48,540 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:06:48,542 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 274 transitions. [2020-10-16 05:06:48,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 57 flow [2020-10-16 05:06:48,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 54 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 05:06:48,549 INFO L241 Difference]: Finished difference. Result has 26 places, 18 transitions, 57 flow [2020-10-16 05:06:48,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2020-10-16 05:06:48,553 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2020-10-16 05:06:48,553 INFO L481 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2020-10-16 05:06:48,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:06:48,554 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:06:48,554 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:06:48,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:06:48,554 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:06:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:06:48,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1744390338, now seen corresponding path program 1 times [2020-10-16 05:06:48,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:06:48,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392889407] [2020-10-16 05:06:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:06:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:06:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:06:48,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392889407] [2020-10-16 05:06:48,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:06:48,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:06:48,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244674482] [2020-10-16 05:06:48,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:06:48,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:06:48,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:06:48,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:06:48,620 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2020-10-16 05:06:48,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand 3 states. [2020-10-16 05:06:48,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:06:48,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2020-10-16 05:06:48,623 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:06:48,637 INFO L129 PetriNetUnfolder]: 3/23 cut-off events. [2020-10-16 05:06:48,637 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 05:06:48,638 INFO L80 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 23 events. 3/23 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 1 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2020-10-16 05:06:48,639 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 1 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2020-10-16 05:06:48,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 63 flow [2020-10-16 05:06:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:06:48,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:06:48,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2020-10-16 05:06:48,642 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8287461773700305 [2020-10-16 05:06:48,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2020-10-16 05:06:48,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2020-10-16 05:06:48,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:06:48,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2020-10-16 05:06:48,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:06:48,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:06:48,647 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:06:48,647 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 3 states and 271 transitions. [2020-10-16 05:06:48,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 63 flow [2020-10-16 05:06:48,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 18 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:06:48,652 INFO L241 Difference]: Finished difference. Result has 28 places, 18 transitions, 62 flow [2020-10-16 05:06:48,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2020-10-16 05:06:48,653 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2020-10-16 05:06:48,653 INFO L481 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 62 flow [2020-10-16 05:06:48,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:06:48,653 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:06:48,653 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:06:48,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:06:48,654 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:06:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:06:48,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1759177370, now seen corresponding path program 1 times [2020-10-16 05:06:48,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:06:48,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42450588] [2020-10-16 05:06:48,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:06:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:06:48,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:06:48,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42450588] [2020-10-16 05:06:48,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:06:48,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:06:48,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395540364] [2020-10-16 05:06:48,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:06:48,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:06:48,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:06:48,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:06:48,777 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 109 [2020-10-16 05:06:48,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 62 flow. Second operand 4 states. [2020-10-16 05:06:48,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:06:48,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 109 [2020-10-16 05:06:48,779 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:06:48,818 INFO L129 PetriNetUnfolder]: 11/49 cut-off events. [2020-10-16 05:06:48,818 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2020-10-16 05:06:48,819 INFO L80 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 49 events. 11/49 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 157 event pairs, 3 based on Foata normal form. 8/56 useless extension candidates. Maximal degree in co-relation 100. Up to 17 conditions per place. [2020-10-16 05:06:48,820 INFO L132 encePairwiseOnDemand]: 105/109 looper letters, 4 selfloop transitions, 3 changer transitions 1/21 dead transitions. [2020-10-16 05:06:48,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 87 flow [2020-10-16 05:06:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:06:48,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:06:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2020-10-16 05:06:48,823 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7844036697247706 [2020-10-16 05:06:48,823 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2020-10-16 05:06:48,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2020-10-16 05:06:48,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:06:48,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2020-10-16 05:06:48,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:06:48,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:06:48,827 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:06:48,827 INFO L185 Difference]: Start difference. First operand has 28 places, 18 transitions, 62 flow. Second operand 4 states and 342 transitions. [2020-10-16 05:06:48,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 87 flow [2020-10-16 05:06:48,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 81 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:06:48,829 INFO L241 Difference]: Finished difference. Result has 31 places, 18 transitions, 72 flow [2020-10-16 05:06:48,830 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2020-10-16 05:06:48,830 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2020-10-16 05:06:48,830 INFO L481 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 72 flow [2020-10-16 05:06:48,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:06:48,831 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:06:48,831 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:06:48,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:06:48,831 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:06:48,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:06:48,832 INFO L82 PathProgramCache]: Analyzing trace with hash 866166835, now seen corresponding path program 1 times [2020-10-16 05:06:48,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:06:48,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758879816] [2020-10-16 05:06:48,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:06:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:06:48,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:06:48,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758879816] [2020-10-16 05:06:48,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:06:48,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:06:48,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480647874] [2020-10-16 05:06:48,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:06:48,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:06:48,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:06:48,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:06:48,950 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2020-10-16 05:06:48,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 72 flow. Second operand 4 states. [2020-10-16 05:06:48,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:06:48,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2020-10-16 05:06:48,951 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:06:49,006 INFO L129 PetriNetUnfolder]: 43/96 cut-off events. [2020-10-16 05:06:49,006 INFO L130 PetriNetUnfolder]: For 258/291 co-relation queries the response was YES. [2020-10-16 05:06:49,007 INFO L80 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 96 events. 43/96 cut-off events. For 258/291 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 348 event pairs, 18 based on Foata normal form. 17/104 useless extension candidates. Maximal degree in co-relation 242. Up to 62 conditions per place. [2020-10-16 05:06:49,008 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 7 selfloop transitions, 7 changer transitions 2/28 dead transitions. [2020-10-16 05:06:49,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 124 flow [2020-10-16 05:06:49,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:06:49,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:06:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 428 transitions. [2020-10-16 05:06:49,011 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7853211009174312 [2020-10-16 05:06:49,011 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 428 transitions. [2020-10-16 05:06:49,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 428 transitions. [2020-10-16 05:06:49,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:06:49,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 428 transitions. [2020-10-16 05:06:49,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:06:49,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:06:49,015 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:06:49,015 INFO L185 Difference]: Start difference. First operand has 31 places, 18 transitions, 72 flow. Second operand 5 states and 428 transitions. [2020-10-16 05:06:49,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 124 flow [2020-10-16 05:06:49,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 112 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 05:06:49,018 INFO L241 Difference]: Finished difference. Result has 34 places, 24 transitions, 114 flow [2020-10-16 05:06:49,018 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2020-10-16 05:06:49,019 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2020-10-16 05:06:49,019 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 114 flow [2020-10-16 05:06:49,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:06:49,019 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:06:49,019 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:06:49,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:06:49,020 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:06:49,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:06:49,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1081844256, now seen corresponding path program 1 times [2020-10-16 05:06:49,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:06:49,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890744031] [2020-10-16 05:06:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:06:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:06:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:06:49,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890744031] [2020-10-16 05:06:49,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:06:49,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:06:49,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131843160] [2020-10-16 05:06:49,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:06:49,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:06:49,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:06:49,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:06:49,075 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2020-10-16 05:06:49,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 114 flow. Second operand 5 states. [2020-10-16 05:06:49,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:06:49,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2020-10-16 05:06:49,076 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:06:49,155 INFO L129 PetriNetUnfolder]: 25/75 cut-off events. [2020-10-16 05:06:49,155 INFO L130 PetriNetUnfolder]: For 238/365 co-relation queries the response was YES. [2020-10-16 05:06:49,156 INFO L80 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 75 events. 25/75 cut-off events. For 238/365 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 270 event pairs, 3 based on Foata normal form. 41/112 useless extension candidates. Maximal degree in co-relation 268. Up to 52 conditions per place. [2020-10-16 05:06:49,157 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 5 selfloop transitions, 13 changer transitions 4/34 dead transitions. [2020-10-16 05:06:49,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 34 transitions, 216 flow [2020-10-16 05:06:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:06:49,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:06:49,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 598 transitions. [2020-10-16 05:06:49,160 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.783748361730013 [2020-10-16 05:06:49,160 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 598 transitions. [2020-10-16 05:06:49,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 598 transitions. [2020-10-16 05:06:49,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:06:49,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 598 transitions. [2020-10-16 05:06:49,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:06:49,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:06:49,164 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:06:49,165 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 114 flow. Second operand 7 states and 598 transitions. [2020-10-16 05:06:49,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 34 transitions, 216 flow [2020-10-16 05:06:49,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:06:49,168 INFO L241 Difference]: Finished difference. Result has 42 places, 30 transitions, 198 flow [2020-10-16 05:06:49,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=198, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2020-10-16 05:06:49,169 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 16 predicate places. [2020-10-16 05:06:49,169 INFO L481 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 198 flow [2020-10-16 05:06:49,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:06:49,169 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:06:49,169 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:06:49,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:06:49,170 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:06:49,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:06:49,170 INFO L82 PathProgramCache]: Analyzing trace with hash -86970807, now seen corresponding path program 1 times [2020-10-16 05:06:49,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:06:49,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581177045] [2020-10-16 05:06:49,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:06:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:06:49,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:06:49,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581177045] [2020-10-16 05:06:49,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:06:49,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:06:49,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131738432] [2020-10-16 05:06:49,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:06:49,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:06:49,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:06:49,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:06:49,199 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2020-10-16 05:06:49,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 198 flow. Second operand 3 states. [2020-10-16 05:06:49,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:06:49,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2020-10-16 05:06:49,200 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:06:49,223 INFO L129 PetriNetUnfolder]: 23/86 cut-off events. [2020-10-16 05:06:49,223 INFO L130 PetriNetUnfolder]: For 471/569 co-relation queries the response was YES. [2020-10-16 05:06:49,224 INFO L80 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 86 events. 23/86 cut-off events. For 471/569 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 370 event pairs, 3 based on Foata normal form. 11/93 useless extension candidates. Maximal degree in co-relation 353. Up to 64 conditions per place. [2020-10-16 05:06:49,224 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 3 selfloop transitions, 3 changer transitions 6/30 dead transitions. [2020-10-16 05:06:49,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 210 flow [2020-10-16 05:06:49,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:06:49,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:06:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2020-10-16 05:06:49,226 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8348623853211009 [2020-10-16 05:06:49,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2020-10-16 05:06:49,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2020-10-16 05:06:49,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:06:49,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2020-10-16 05:06:49,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:06:49,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:06:49,229 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:06:49,229 INFO L185 Difference]: Start difference. First operand has 42 places, 30 transitions, 198 flow. Second operand 3 states and 273 transitions. [2020-10-16 05:06:49,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 210 flow [2020-10-16 05:06:49,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 30 transitions, 180 flow, removed 11 selfloop flow, removed 2 redundant places. [2020-10-16 05:06:49,234 INFO L241 Difference]: Finished difference. Result has 43 places, 24 transitions, 139 flow [2020-10-16 05:06:49,235 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=43, PETRI_TRANSITIONS=24} [2020-10-16 05:06:49,235 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 17 predicate places. [2020-10-16 05:06:49,235 INFO L481 AbstractCegarLoop]: Abstraction has has 43 places, 24 transitions, 139 flow [2020-10-16 05:06:49,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:06:49,235 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:06:49,235 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:06:49,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:06:49,236 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:06:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:06:49,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1999671234, now seen corresponding path program 1 times [2020-10-16 05:06:49,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:06:49,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819472914] [2020-10-16 05:06:49,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:06:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:06:49,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:06:49,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819472914] [2020-10-16 05:06:49,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:06:49,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:06:49,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733502996] [2020-10-16 05:06:49,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:06:49,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:06:49,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:06:49,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:06:49,268 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 109 [2020-10-16 05:06:49,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 24 transitions, 139 flow. Second operand 4 states. [2020-10-16 05:06:49,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:06:49,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 109 [2020-10-16 05:06:49,269 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:06:49,302 INFO L129 PetriNetUnfolder]: 26/86 cut-off events. [2020-10-16 05:06:49,302 INFO L130 PetriNetUnfolder]: For 319/333 co-relation queries the response was YES. [2020-10-16 05:06:49,303 INFO L80 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 86 events. 26/86 cut-off events. For 319/333 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 320 event pairs, 3 based on Foata normal form. 10/94 useless extension candidates. Maximal degree in co-relation 282. Up to 43 conditions per place. [2020-10-16 05:06:49,304 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 4 selfloop transitions, 2 changer transitions 2/26 dead transitions. [2020-10-16 05:06:49,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 159 flow [2020-10-16 05:06:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:06:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:06:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2020-10-16 05:06:49,306 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7889908256880734 [2020-10-16 05:06:49,306 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 344 transitions. [2020-10-16 05:06:49,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 344 transitions. [2020-10-16 05:06:49,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:06:49,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 344 transitions. [2020-10-16 05:06:49,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:06:49,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:06:49,309 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:06:49,309 INFO L185 Difference]: Start difference. First operand has 43 places, 24 transitions, 139 flow. Second operand 4 states and 344 transitions. [2020-10-16 05:06:49,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 159 flow [2020-10-16 05:06:49,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 140 flow, removed 8 selfloop flow, removed 4 redundant places. [2020-10-16 05:06:49,312 INFO L241 Difference]: Finished difference. Result has 40 places, 24 transitions, 127 flow [2020-10-16 05:06:49,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2020-10-16 05:06:49,312 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2020-10-16 05:06:49,312 INFO L481 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 127 flow [2020-10-16 05:06:49,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:06:49,313 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:06:49,313 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:06:49,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:06:49,313 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:06:49,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:06:49,314 INFO L82 PathProgramCache]: Analyzing trace with hash -875287526, now seen corresponding path program 2 times [2020-10-16 05:06:49,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:06:49,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881377297] [2020-10-16 05:06:49,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:06:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:06:49,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:06:49,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881377297] [2020-10-16 05:06:49,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:06:49,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 05:06:49,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429436215] [2020-10-16 05:06:49,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 05:06:49,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:06:49,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 05:06:49,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 05:06:49,370 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2020-10-16 05:06:49,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 127 flow. Second operand 6 states. [2020-10-16 05:06:49,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:06:49,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2020-10-16 05:06:49,371 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:06:49,425 INFO L129 PetriNetUnfolder]: 15/68 cut-off events. [2020-10-16 05:06:49,425 INFO L130 PetriNetUnfolder]: For 91/150 co-relation queries the response was YES. [2020-10-16 05:06:49,426 INFO L80 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 68 events. 15/68 cut-off events. For 91/150 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 262 event pairs, 0 based on Foata normal form. 30/95 useless extension candidates. Maximal degree in co-relation 246. Up to 37 conditions per place. [2020-10-16 05:06:49,426 INFO L132 encePairwiseOnDemand]: 103/109 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2020-10-16 05:06:49,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 26 transitions, 159 flow [2020-10-16 05:06:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:06:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:06:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 588 transitions. [2020-10-16 05:06:49,429 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7706422018348624 [2020-10-16 05:06:49,430 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 588 transitions. [2020-10-16 05:06:49,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 588 transitions. [2020-10-16 05:06:49,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:06:49,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 588 transitions. [2020-10-16 05:06:49,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:06:49,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:06:49,434 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:06:49,434 INFO L185 Difference]: Start difference. First operand has 40 places, 24 transitions, 127 flow. Second operand 7 states and 588 transitions. [2020-10-16 05:06:49,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 26 transitions, 159 flow [2020-10-16 05:06:49,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 26 transitions, 152 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 05:06:49,436 INFO L241 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2020-10-16 05:06:49,436 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2020-10-16 05:06:49,436 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 15 predicate places. [2020-10-16 05:06:49,436 INFO L481 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2020-10-16 05:06:49,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 05:06:49,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 05:06:49,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:06:49 BasicIcfg [2020-10-16 05:06:49,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:06:49,444 INFO L168 Benchmark]: Toolchain (without parser) took 4095.95 ms. Allocated memory was 250.1 MB in the beginning and 368.6 MB in the end (delta: 118.5 MB). Free memory was 205.4 MB in the beginning and 249.1 MB in the end (delta: -43.6 MB). Peak memory consumption was 74.8 MB. Max. memory is 14.2 GB. [2020-10-16 05:06:49,445 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:06:49,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.95 ms. Allocated memory was 250.1 MB in the beginning and 310.4 MB in the end (delta: 60.3 MB). Free memory was 205.4 MB in the beginning and 265.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:06:49,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.88 ms. Allocated memory is still 310.4 MB. Free memory is still 263.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:06:49,447 INFO L168 Benchmark]: Boogie Preprocessor took 29.84 ms. Allocated memory is still 310.4 MB. Free memory was 263.2 MB in the beginning and 260.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:06:49,448 INFO L168 Benchmark]: RCFGBuilder took 427.41 ms. Allocated memory is still 310.4 MB. Free memory was 260.7 MB in the beginning and 238.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:06:49,449 INFO L168 Benchmark]: TraceAbstraction took 2873.73 ms. Allocated memory was 310.4 MB in the beginning and 368.6 MB in the end (delta: 58.2 MB). Free memory was 238.6 MB in the beginning and 249.1 MB in the end (delta: -10.5 MB). Peak memory consumption was 47.7 MB. Max. memory is 14.2 GB. [2020-10-16 05:06:49,453 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 708.95 ms. Allocated memory was 250.1 MB in the beginning and 310.4 MB in the end (delta: 60.3 MB). Free memory was 205.4 MB in the beginning and 265.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.88 ms. Allocated memory is still 310.4 MB. Free memory is still 263.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 29.84 ms. Allocated memory is still 310.4 MB. Free memory was 263.2 MB in the beginning and 260.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 427.41 ms. Allocated memory is still 310.4 MB. Free memory was 260.7 MB in the beginning and 238.6 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2873.73 ms. Allocated memory was 310.4 MB in the beginning and 368.6 MB in the end (delta: 58.2 MB). Free memory was 238.6 MB in the beginning and 249.1 MB in the end (delta: -10.5 MB). Peak memory consumption was 47.7 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 504 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 65 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 63 PlacesBefore, 26 PlacesAfterwards, 54 TransitionsBefore, 16 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1499 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 27 SDtfs, 17 SDslu, 10 SDs, 0 SdLazy, 100 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 2525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...