/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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:27:31,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:27:31,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:27:31,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:27:31,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:27:31,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:27:31,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:27:31,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:27:31,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:27:31,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:27:31,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:27:31,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:27:31,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:27:31,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:27:31,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:27:31,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:27:31,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:27:31,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:27:31,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:27:31,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:27:31,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:27:31,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:27:31,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:27:31,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:27:31,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 18:27:31,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:27:31,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:27:31,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:27:31,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:27:31,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:27:31,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:27:31,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:27:31,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:27:31,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:27:31,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:27:31,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:27:31,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:27:32,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:27:32,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:27:32,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:27:32,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:27:32,024 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:27:32,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:27:32,025 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:27:32,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:27:32,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:27:32,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:27:32,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:27:32,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:27:32,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:27:32,026 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:27:32,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:27:32,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:27:32,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:27:32,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:27:32,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:27:32,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:27:32,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:27:32,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:27:32,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:27:32,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:27:32,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:27:32,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:27:32,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:27:32,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:27:32,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:27:32,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:27:32,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:27:32,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:27:32,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:27:32,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:27:32,362 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:27:32,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi000_tso.oepc.i [2020-10-11 18:27:32,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0e04b76/3af15b401f8e4cdb978f64c70b7b2ca2/FLAG188057bb1 [2020-10-11 18:27:33,011 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:27:33,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi000_tso.oepc.i [2020-10-11 18:27:33,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0e04b76/3af15b401f8e4cdb978f64c70b7b2ca2/FLAG188057bb1 [2020-10-11 18:27:33,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b0e04b76/3af15b401f8e4cdb978f64c70b7b2ca2 [2020-10-11 18:27:33,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:27:33,293 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:27:33,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:27:33,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:27:33,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:27:33,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:27:33" (1/1) ... [2020-10-11 18:27:33,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1629f375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:33, skipping insertion in model container [2020-10-11 18:27:33,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:27:33" (1/1) ... [2020-10-11 18:27:33,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:27:33,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:27:33,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:27:33,988 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:27:34,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:27:34,136 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:27:34,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34 WrapperNode [2020-10-11 18:27:34,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:27:34,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:27:34,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:27:34,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:27:34,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:27:34,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:27:34,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:27:34,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:27:34,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (1/1) ... [2020-10-11 18:27:34,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:27:34,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:27:34,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:27:34,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:27:34,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (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 [2020-10-11 18:27:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:27:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:27:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:27:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:27:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:27:34,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:27:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:27:34,346 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:27:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:27:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:27:34,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:27:34,349 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:27:37,539 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:27:37,540 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 18:27:37,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:27:37 BoogieIcfgContainer [2020-10-11 18:27:37,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:27:37,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:27:37,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:27:37,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:27:37,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:27:33" (1/3) ... [2020-10-11 18:27:37,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394a56d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:27:37, skipping insertion in model container [2020-10-11 18:27:37,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:34" (2/3) ... [2020-10-11 18:27:37,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394a56d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:27:37, skipping insertion in model container [2020-10-11 18:27:37,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:27:37" (3/3) ... [2020-10-11 18:27:37,555 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi000_tso.oepc.i [2020-10-11 18:27:37,571 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:27:37,581 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 18:27:37,582 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:27:37,626 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,627 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,632 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,632 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,634 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,635 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,636 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,639 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,640 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,641 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,642 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,643 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,644 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,661 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,662 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,663 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,667 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,672 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,673 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,674 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,674 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,674 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:27:37,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 18:27:37,729 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:27:37,729 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:27:37,730 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:27:37,730 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:27:37,730 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:27:37,730 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:27:37,731 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:27:37,731 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:27:37,749 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 166 flow [2020-10-11 18:27:37,804 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-11 18:27:37,804 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:27:37,810 INFO L80 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2020-10-11 18:27:37,810 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 78 transitions, 166 flow [2020-10-11 18:27:37,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 76 transitions, 158 flow [2020-10-11 18:27:37,834 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2020-10-11 18:27:37,834 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:27:37,835 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:37,837 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:37,837 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:37,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:37,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1494917837, now seen corresponding path program 1 times [2020-10-11 18:27:37,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:37,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384241467] [2020-10-11 18:27:37,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:38,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:38,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384241467] [2020-10-11 18:27:38,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:38,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 18:27:38,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255069359] [2020-10-11 18:27:38,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 18:27:38,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:38,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 18:27:38,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 18:27:38,471 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 78 [2020-10-11 18:27:38,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 158 flow. Second operand 3 states. [2020-10-11 18:27:38,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:38,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 78 [2020-10-11 18:27:38,475 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:38,503 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2020-10-11 18:27:38,503 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:27:38,503 INFO L80 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 0/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 4/75 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-11 18:27:38,505 INFO L132 encePairwiseOnDemand]: 73/78 looper letters, 0 selfloop transitions, 2 changer transitions 9/73 dead transitions. [2020-10-11 18:27:38,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 73 transitions, 156 flow [2020-10-11 18:27:38,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 18:27:38,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 18:27:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2020-10-11 18:27:38,522 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9658119658119658 [2020-10-11 18:27:38,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2020-10-11 18:27:38,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2020-10-11 18:27:38,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:38,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2020-10-11 18:27:38,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 18:27:38,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 18:27:38,539 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 18:27:38,542 INFO L185 Difference]: Start difference. First operand has 81 places, 76 transitions, 158 flow. Second operand 3 states and 226 transitions. [2020-10-11 18:27:38,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 73 transitions, 156 flow [2020-10-11 18:27:38,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 73 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:27:38,552 INFO L241 Difference]: Finished difference. Result has 80 places, 64 transitions, 136 flow [2020-10-11 18:27:38,554 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=80, PETRI_TRANSITIONS=64} [2020-10-11 18:27:38,555 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, -1 predicate places. [2020-10-11 18:27:38,556 INFO L481 AbstractCegarLoop]: Abstraction has has 80 places, 64 transitions, 136 flow [2020-10-11 18:27:38,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 18:27:38,556 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:38,556 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:38,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:27:38,557 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:38,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash 319838321, now seen corresponding path program 1 times [2020-10-11 18:27:38,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:38,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307884398] [2020-10-11 18:27:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:38,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307884398] [2020-10-11 18:27:38,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:38,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:27:38,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899034393] [2020-10-11 18:27:38,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:27:38,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:38,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:27:38,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:27:39,016 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 78 [2020-10-11 18:27:39,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 64 transitions, 136 flow. Second operand 6 states. [2020-10-11 18:27:39,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:39,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 78 [2020-10-11 18:27:39,017 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:39,164 INFO L129 PetriNetUnfolder]: 3/80 cut-off events. [2020-10-11 18:27:39,165 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:27:39,165 INFO L80 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 80 events. 3/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 2/82 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2020-10-11 18:27:39,166 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 6 selfloop transitions, 2 changer transitions 10/74 dead transitions. [2020-10-11 18:27:39,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 74 transitions, 192 flow [2020-10-11 18:27:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:27:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:27:39,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 632 transitions. [2020-10-11 18:27:39,172 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9002849002849003 [2020-10-11 18:27:39,172 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 632 transitions. [2020-10-11 18:27:39,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 632 transitions. [2020-10-11 18:27:39,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:39,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 632 transitions. [2020-10-11 18:27:39,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:27:39,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:27:39,184 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:27:39,184 INFO L185 Difference]: Start difference. First operand has 80 places, 64 transitions, 136 flow. Second operand 9 states and 632 transitions. [2020-10-11 18:27:39,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 74 transitions, 192 flow [2020-10-11 18:27:39,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 74 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:27:39,191 INFO L241 Difference]: Finished difference. Result has 84 places, 64 transitions, 152 flow [2020-10-11 18:27:39,191 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=152, PETRI_PLACES=84, PETRI_TRANSITIONS=64} [2020-10-11 18:27:39,192 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 3 predicate places. [2020-10-11 18:27:39,195 INFO L481 AbstractCegarLoop]: Abstraction has has 84 places, 64 transitions, 152 flow [2020-10-11 18:27:39,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:27:39,195 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:39,195 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:39,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:27:39,196 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:39,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:39,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1219461037, now seen corresponding path program 1 times [2020-10-11 18:27:39,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:39,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966930699] [2020-10-11 18:27:39,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:39,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:39,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966930699] [2020-10-11 18:27:39,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:39,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:27:39,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252875630] [2020-10-11 18:27:39,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:27:39,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:39,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:27:39,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:27:39,690 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 78 [2020-10-11 18:27:39,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 64 transitions, 152 flow. Second operand 6 states. [2020-10-11 18:27:39,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:39,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 78 [2020-10-11 18:27:39,691 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:39,816 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-10-11 18:27:39,816 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-11 18:27:39,817 INFO L80 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 87 events. 3/87 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 2/89 useless extension candidates. Maximal degree in co-relation 124. Up to 7 conditions per place. [2020-10-11 18:27:39,818 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 6 selfloop transitions, 2 changer transitions 10/74 dead transitions. [2020-10-11 18:27:39,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 74 transitions, 226 flow [2020-10-11 18:27:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:27:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:27:39,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 632 transitions. [2020-10-11 18:27:39,822 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9002849002849003 [2020-10-11 18:27:39,822 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 632 transitions. [2020-10-11 18:27:39,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 632 transitions. [2020-10-11 18:27:39,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:39,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 632 transitions. [2020-10-11 18:27:39,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:27:39,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:27:39,827 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:27:39,827 INFO L185 Difference]: Start difference. First operand has 84 places, 64 transitions, 152 flow. Second operand 9 states and 632 transitions. [2020-10-11 18:27:39,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 74 transitions, 226 flow [2020-10-11 18:27:39,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 74 transitions, 194 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:27:39,830 INFO L241 Difference]: Finished difference. Result has 85 places, 64 transitions, 156 flow [2020-10-11 18:27:39,831 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=156, PETRI_PLACES=85, PETRI_TRANSITIONS=64} [2020-10-11 18:27:39,831 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2020-10-11 18:27:39,831 INFO L481 AbstractCegarLoop]: Abstraction has has 85 places, 64 transitions, 156 flow [2020-10-11 18:27:39,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:27:39,832 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:39,832 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:39,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:27:39,832 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:39,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:39,833 INFO L82 PathProgramCache]: Analyzing trace with hash 990503811, now seen corresponding path program 1 times [2020-10-11 18:27:39,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:39,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597624671] [2020-10-11 18:27:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:40,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:40,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597624671] [2020-10-11 18:27:40,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:40,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-11 18:27:40,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106425756] [2020-10-11 18:27:40,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 18:27:40,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:40,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 18:27:40,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-11 18:27:40,625 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 78 [2020-10-11 18:27:40,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 64 transitions, 156 flow. Second operand 10 states. [2020-10-11 18:27:40,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:40,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 78 [2020-10-11 18:27:40,627 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:41,004 INFO L129 PetriNetUnfolder]: 78/252 cut-off events. [2020-10-11 18:27:41,005 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2020-10-11 18:27:41,006 INFO L80 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 252 events. 78/252 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1025 event pairs, 38 based on Foata normal form. 6/253 useless extension candidates. Maximal degree in co-relation 468. Up to 103 conditions per place. [2020-10-11 18:27:41,008 INFO L132 encePairwiseOnDemand]: 67/78 looper letters, 19 selfloop transitions, 9 changer transitions 22/96 dead transitions. [2020-10-11 18:27:41,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 96 transitions, 344 flow [2020-10-11 18:27:41,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 18:27:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 18:27:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 806 transitions. [2020-10-11 18:27:41,013 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7948717948717948 [2020-10-11 18:27:41,013 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 806 transitions. [2020-10-11 18:27:41,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 806 transitions. [2020-10-11 18:27:41,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:41,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 806 transitions. [2020-10-11 18:27:41,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 18:27:41,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 18:27:41,018 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 18:27:41,018 INFO L185 Difference]: Start difference. First operand has 85 places, 64 transitions, 156 flow. Second operand 13 states and 806 transitions. [2020-10-11 18:27:41,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 96 transitions, 344 flow [2020-10-11 18:27:41,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 96 transitions, 310 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:27:41,024 INFO L241 Difference]: Finished difference. Result has 92 places, 70 transitions, 209 flow [2020-10-11 18:27:41,024 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=209, PETRI_PLACES=92, PETRI_TRANSITIONS=70} [2020-10-11 18:27:41,025 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 11 predicate places. [2020-10-11 18:27:41,025 INFO L481 AbstractCegarLoop]: Abstraction has has 92 places, 70 transitions, 209 flow [2020-10-11 18:27:41,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 18:27:41,025 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:41,025 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:41,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:27:41,026 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:41,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:41,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1119462182, now seen corresponding path program 1 times [2020-10-11 18:27:41,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:41,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282039800] [2020-10-11 18:27:41,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:41,738 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 35 [2020-10-11 18:27:41,922 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2020-10-11 18:27:42,101 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 34 [2020-10-11 18:27:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:42,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282039800] [2020-10-11 18:27:42,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:42,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 18:27:42,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696110983] [2020-10-11 18:27:42,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 18:27:42,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:42,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 18:27:42,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-11 18:27:44,375 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 78 [2020-10-11 18:27:44,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 70 transitions, 209 flow. Second operand 14 states. [2020-10-11 18:27:44,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:44,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 78 [2020-10-11 18:27:44,377 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:44,940 INFO L129 PetriNetUnfolder]: 56/205 cut-off events. [2020-10-11 18:27:44,940 INFO L130 PetriNetUnfolder]: For 153/153 co-relation queries the response was YES. [2020-10-11 18:27:44,941 INFO L80 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 205 events. 56/205 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 732 event pairs, 37 based on Foata normal form. 3/204 useless extension candidates. Maximal degree in co-relation 463. Up to 90 conditions per place. [2020-10-11 18:27:44,943 INFO L132 encePairwiseOnDemand]: 64/78 looper letters, 20 selfloop transitions, 14 changer transitions 13/90 dead transitions. [2020-10-11 18:27:44,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 90 transitions, 374 flow [2020-10-11 18:27:44,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-11 18:27:44,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-11 18:27:44,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 967 transitions. [2020-10-11 18:27:44,951 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.729260935143288 [2020-10-11 18:27:44,952 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 967 transitions. [2020-10-11 18:27:44,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 967 transitions. [2020-10-11 18:27:44,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:44,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 967 transitions. [2020-10-11 18:27:44,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 18 states. [2020-10-11 18:27:44,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 18 states. [2020-10-11 18:27:44,958 INFO L81 ComplementDD]: Finished complementDD. Result 18 states. [2020-10-11 18:27:44,958 INFO L185 Difference]: Start difference. First operand has 92 places, 70 transitions, 209 flow. Second operand 17 states and 967 transitions. [2020-10-11 18:27:44,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 90 transitions, 374 flow [2020-10-11 18:27:44,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 90 transitions, 356 flow, removed 7 selfloop flow, removed 5 redundant places. [2020-10-11 18:27:44,962 INFO L241 Difference]: Finished difference. Result has 105 places, 72 transitions, 255 flow [2020-10-11 18:27:44,963 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=255, PETRI_PLACES=105, PETRI_TRANSITIONS=72} [2020-10-11 18:27:44,963 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 24 predicate places. [2020-10-11 18:27:44,963 INFO L481 AbstractCegarLoop]: Abstraction has has 105 places, 72 transitions, 255 flow [2020-10-11 18:27:44,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 18:27:44,963 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:44,964 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:44,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:27:44,964 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:44,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:44,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1883781386, now seen corresponding path program 1 times [2020-10-11 18:27:44,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:44,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668820152] [2020-10-11 18:27:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:45,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668820152] [2020-10-11 18:27:45,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:45,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:27:45,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918200359] [2020-10-11 18:27:45,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:27:45,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:45,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:27:45,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:27:45,194 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 78 [2020-10-11 18:27:45,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 72 transitions, 255 flow. Second operand 6 states. [2020-10-11 18:27:45,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:45,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 78 [2020-10-11 18:27:45,195 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:45,330 INFO L129 PetriNetUnfolder]: 36/186 cut-off events. [2020-10-11 18:27:45,330 INFO L130 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2020-10-11 18:27:45,331 INFO L80 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 186 events. 36/186 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 707 event pairs, 4 based on Foata normal form. 5/184 useless extension candidates. Maximal degree in co-relation 351. Up to 32 conditions per place. [2020-10-11 18:27:45,333 INFO L132 encePairwiseOnDemand]: 70/78 looper letters, 11 selfloop transitions, 11 changer transitions 6/91 dead transitions. [2020-10-11 18:27:45,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 91 transitions, 349 flow [2020-10-11 18:27:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:27:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:27:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 624 transitions. [2020-10-11 18:27:45,336 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2020-10-11 18:27:45,336 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 624 transitions. [2020-10-11 18:27:45,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 624 transitions. [2020-10-11 18:27:45,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:45,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 624 transitions. [2020-10-11 18:27:45,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:27:45,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:27:45,340 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:27:45,340 INFO L185 Difference]: Start difference. First operand has 105 places, 72 transitions, 255 flow. Second operand 9 states and 624 transitions. [2020-10-11 18:27:45,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 91 transitions, 349 flow [2020-10-11 18:27:45,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 305 flow, removed 7 selfloop flow, removed 15 redundant places. [2020-10-11 18:27:45,345 INFO L241 Difference]: Finished difference. Result has 97 places, 82 transitions, 288 flow [2020-10-11 18:27:45,346 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2020-10-11 18:27:45,346 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 16 predicate places. [2020-10-11 18:27:45,346 INFO L481 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 288 flow [2020-10-11 18:27:45,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:27:45,346 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:45,347 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:45,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:27:45,347 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:45,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:45,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1357402523, now seen corresponding path program 1 times [2020-10-11 18:27:45,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:45,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808102701] [2020-10-11 18:27:45,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:45,812 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2020-10-11 18:27:46,017 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-11 18:27:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:46,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808102701] [2020-10-11 18:27:46,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:46,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-11 18:27:46,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181829686] [2020-10-11 18:27:46,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 18:27:46,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:46,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 18:27:46,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-11 18:27:47,864 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 78 [2020-10-11 18:27:47,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 82 transitions, 288 flow. Second operand 12 states. [2020-10-11 18:27:47,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:47,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 78 [2020-10-11 18:27:47,865 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:47,987 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-10-11 18:27:48,174 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-10-11 18:27:48,498 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-10-11 18:27:48,759 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-10-11 18:27:48,939 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-10-11 18:27:49,197 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-11 18:27:49,261 INFO L129 PetriNetUnfolder]: 49/282 cut-off events. [2020-10-11 18:27:49,262 INFO L130 PetriNetUnfolder]: For 165/172 co-relation queries the response was YES. [2020-10-11 18:27:49,264 INFO L80 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 282 events. 49/282 cut-off events. For 165/172 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1384 event pairs, 5 based on Foata normal form. 4/276 useless extension candidates. Maximal degree in co-relation 605. Up to 71 conditions per place. [2020-10-11 18:27:49,266 INFO L132 encePairwiseOnDemand]: 65/78 looper letters, 23 selfloop transitions, 19 changer transitions 10/106 dead transitions. [2020-10-11 18:27:49,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 106 transitions, 478 flow [2020-10-11 18:27:49,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-11 18:27:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-11 18:27:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 928 transitions. [2020-10-11 18:27:49,270 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2020-10-11 18:27:49,271 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 928 transitions. [2020-10-11 18:27:49,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 928 transitions. [2020-10-11 18:27:49,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:49,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 928 transitions. [2020-10-11 18:27:49,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. [2020-10-11 18:27:49,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 17 states. [2020-10-11 18:27:49,278 INFO L81 ComplementDD]: Finished complementDD. Result 17 states. [2020-10-11 18:27:49,278 INFO L185 Difference]: Start difference. First operand has 97 places, 82 transitions, 288 flow. Second operand 16 states and 928 transitions. [2020-10-11 18:27:49,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 106 transitions, 478 flow [2020-10-11 18:27:49,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 18:27:49,284 INFO L241 Difference]: Finished difference. Result has 119 places, 92 transitions, 394 flow [2020-10-11 18:27:49,284 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=394, PETRI_PLACES=119, PETRI_TRANSITIONS=92} [2020-10-11 18:27:49,284 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 38 predicate places. [2020-10-11 18:27:49,284 INFO L481 AbstractCegarLoop]: Abstraction has has 119 places, 92 transitions, 394 flow [2020-10-11 18:27:49,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 18:27:49,285 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:49,285 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:49,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:27:49,285 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:49,286 INFO L82 PathProgramCache]: Analyzing trace with hash -482848637, now seen corresponding path program 2 times [2020-10-11 18:27:49,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:49,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997456610] [2020-10-11 18:27:49,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:50,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:50,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997456610] [2020-10-11 18:27:50,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:50,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-11 18:27:50,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238845656] [2020-10-11 18:27:50,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-11 18:27:50,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:50,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-11 18:27:50,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-10-11 18:27:52,223 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 78 [2020-10-11 18:27:52,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 92 transitions, 394 flow. Second operand 15 states. [2020-10-11 18:27:52,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:52,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 78 [2020-10-11 18:27:52,225 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:52,434 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-10-11 18:27:52,558 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-10-11 18:27:52,831 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-10-11 18:27:53,180 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-10-11 18:27:53,455 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-10-11 18:27:53,732 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-11 18:27:53,822 INFO L129 PetriNetUnfolder]: 82/452 cut-off events. [2020-10-11 18:27:53,823 INFO L130 PetriNetUnfolder]: For 605/622 co-relation queries the response was YES. [2020-10-11 18:27:53,827 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 452 events. 82/452 cut-off events. For 605/622 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2893 event pairs, 15 based on Foata normal form. 8/442 useless extension candidates. Maximal degree in co-relation 1171. Up to 73 conditions per place. [2020-10-11 18:27:53,830 INFO L132 encePairwiseOnDemand]: 62/78 looper letters, 34 selfloop transitions, 24 changer transitions 10/121 dead transitions. [2020-10-11 18:27:53,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 121 transitions, 710 flow [2020-10-11 18:27:53,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-11 18:27:53,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-11 18:27:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1087 transitions. [2020-10-11 18:27:53,835 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.733468286099865 [2020-10-11 18:27:53,835 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1087 transitions. [2020-10-11 18:27:53,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1087 transitions. [2020-10-11 18:27:53,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:53,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1087 transitions. [2020-10-11 18:27:53,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 20 states. [2020-10-11 18:27:53,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 20 states. [2020-10-11 18:27:53,842 INFO L81 ComplementDD]: Finished complementDD. Result 20 states. [2020-10-11 18:27:53,842 INFO L185 Difference]: Start difference. First operand has 119 places, 92 transitions, 394 flow. Second operand 19 states and 1087 transitions. [2020-10-11 18:27:53,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 121 transitions, 710 flow [2020-10-11 18:27:53,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 121 transitions, 649 flow, removed 28 selfloop flow, removed 8 redundant places. [2020-10-11 18:27:53,851 INFO L241 Difference]: Finished difference. Result has 132 places, 101 transitions, 514 flow [2020-10-11 18:27:53,851 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=514, PETRI_PLACES=132, PETRI_TRANSITIONS=101} [2020-10-11 18:27:53,851 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 51 predicate places. [2020-10-11 18:27:53,852 INFO L481 AbstractCegarLoop]: Abstraction has has 132 places, 101 transitions, 514 flow [2020-10-11 18:27:53,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-11 18:27:53,852 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:53,852 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:53,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:27:53,852 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:53,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:53,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1857178813, now seen corresponding path program 3 times [2020-10-11 18:27:53,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:53,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870030476] [2020-10-11 18:27:53,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:54,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870030476] [2020-10-11 18:27:54,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:54,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:27:54,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166941123] [2020-10-11 18:27:54,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:27:54,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:54,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:27:54,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:27:54,163 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 78 [2020-10-11 18:27:54,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 101 transitions, 514 flow. Second operand 7 states. [2020-10-11 18:27:54,165 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:54,165 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 78 [2020-10-11 18:27:54,165 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:54,412 INFO L129 PetriNetUnfolder]: 55/382 cut-off events. [2020-10-11 18:27:54,412 INFO L130 PetriNetUnfolder]: For 407/640 co-relation queries the response was YES. [2020-10-11 18:27:54,415 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 382 events. 55/382 cut-off events. For 407/640 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2540 event pairs, 0 based on Foata normal form. 95/458 useless extension candidates. Maximal degree in co-relation 981. Up to 58 conditions per place. [2020-10-11 18:27:54,420 INFO L132 encePairwiseOnDemand]: 70/78 looper letters, 8 selfloop transitions, 15 changer transitions 10/113 dead transitions. [2020-10-11 18:27:54,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 113 transitions, 621 flow [2020-10-11 18:27:54,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:27:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:27:54,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 822 transitions. [2020-10-11 18:27:54,426 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8782051282051282 [2020-10-11 18:27:54,427 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 822 transitions. [2020-10-11 18:27:54,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 822 transitions. [2020-10-11 18:27:54,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:54,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 822 transitions. [2020-10-11 18:27:54,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:27:54,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:27:54,436 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:27:54,436 INFO L185 Difference]: Start difference. First operand has 132 places, 101 transitions, 514 flow. Second operand 12 states and 822 transitions. [2020-10-11 18:27:54,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 113 transitions, 621 flow [2020-10-11 18:27:54,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 113 transitions, 516 flow, removed 36 selfloop flow, removed 21 redundant places. [2020-10-11 18:27:54,442 INFO L241 Difference]: Finished difference. Result has 122 places, 101 transitions, 459 flow [2020-10-11 18:27:54,443 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=459, PETRI_PLACES=122, PETRI_TRANSITIONS=101} [2020-10-11 18:27:54,443 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 41 predicate places. [2020-10-11 18:27:54,443 INFO L481 AbstractCegarLoop]: Abstraction has has 122 places, 101 transitions, 459 flow [2020-10-11 18:27:54,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:27:54,443 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:54,443 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:54,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 18:27:54,444 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:54,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:54,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1896035294, now seen corresponding path program 1 times [2020-10-11 18:27:54,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:54,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611171529] [2020-10-11 18:27:54,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:55,139 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 36 [2020-10-11 18:27:55,336 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 38 [2020-10-11 18:27:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:55,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611171529] [2020-10-11 18:27:55,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:55,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:27:55,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567125186] [2020-10-11 18:27:55,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:27:55,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:55,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:27:55,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:27:57,808 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 78 [2020-10-11 18:27:57,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 101 transitions, 459 flow. Second operand 16 states. [2020-10-11 18:27:57,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:57,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 78 [2020-10-11 18:27:57,810 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:58,179 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-10-11 18:27:58,395 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2020-10-11 18:27:58,669 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-10-11 18:27:58,834 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-10-11 18:27:59,009 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-11 18:27:59,020 INFO L129 PetriNetUnfolder]: 32/363 cut-off events. [2020-10-11 18:27:59,021 INFO L130 PetriNetUnfolder]: For 517/554 co-relation queries the response was YES. [2020-10-11 18:27:59,022 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 363 events. 32/363 cut-off events. For 517/554 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2525 event pairs, 0 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 935. Up to 49 conditions per place. [2020-10-11 18:27:59,024 INFO L132 encePairwiseOnDemand]: 64/78 looper letters, 30 selfloop transitions, 16 changer transitions 9/109 dead transitions. [2020-10-11 18:27:59,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 109 transitions, 602 flow [2020-10-11 18:27:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:27:59,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:27:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2020-10-11 18:27:59,032 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7128205128205128 [2020-10-11 18:27:59,033 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 834 transitions. [2020-10-11 18:27:59,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 834 transitions. [2020-10-11 18:27:59,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:59,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 834 transitions. [2020-10-11 18:27:59,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:27:59,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:27:59,037 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:27:59,037 INFO L185 Difference]: Start difference. First operand has 122 places, 101 transitions, 459 flow. Second operand 15 states and 834 transitions. [2020-10-11 18:27:59,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 109 transitions, 602 flow [2020-10-11 18:27:59,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 109 transitions, 568 flow, removed 6 selfloop flow, removed 10 redundant places. [2020-10-11 18:27:59,044 INFO L241 Difference]: Finished difference. Result has 129 places, 99 transitions, 461 flow [2020-10-11 18:27:59,044 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=461, PETRI_PLACES=129, PETRI_TRANSITIONS=99} [2020-10-11 18:27:59,045 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 48 predicate places. [2020-10-11 18:27:59,045 INFO L481 AbstractCegarLoop]: Abstraction has has 129 places, 99 transitions, 461 flow [2020-10-11 18:27:59,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:27:59,045 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:59,045 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:59,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 18:27:59,046 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:59,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:59,046 INFO L82 PathProgramCache]: Analyzing trace with hash 127020676, now seen corresponding path program 2 times [2020-10-11 18:27:59,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:59,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216825495] [2020-10-11 18:27:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:27:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:27:59,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216825495] [2020-10-11 18:27:59,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:27:59,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:27:59,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917561405] [2020-10-11 18:27:59,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:27:59,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:27:59,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:27:59,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:27:59,319 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 78 [2020-10-11 18:27:59,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 99 transitions, 461 flow. Second operand 6 states. [2020-10-11 18:27:59,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:27:59,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 78 [2020-10-11 18:27:59,321 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:27:59,443 INFO L129 PetriNetUnfolder]: 33/407 cut-off events. [2020-10-11 18:27:59,444 INFO L130 PetriNetUnfolder]: For 326/330 co-relation queries the response was YES. [2020-10-11 18:27:59,446 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 407 events. 33/407 cut-off events. For 326/330 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3098 event pairs, 0 based on Foata normal form. 2/391 useless extension candidates. Maximal degree in co-relation 1003. Up to 58 conditions per place. [2020-10-11 18:27:59,447 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 7 selfloop transitions, 2 changer transitions 24/104 dead transitions. [2020-10-11 18:27:59,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 104 transitions, 505 flow [2020-10-11 18:27:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 18:27:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-11 18:27:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2020-10-11 18:27:59,451 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8910256410256411 [2020-10-11 18:27:59,451 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 417 transitions. [2020-10-11 18:27:59,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 417 transitions. [2020-10-11 18:27:59,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:27:59,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 417 transitions. [2020-10-11 18:27:59,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-11 18:27:59,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-11 18:27:59,457 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-11 18:27:59,457 INFO L185 Difference]: Start difference. First operand has 129 places, 99 transitions, 461 flow. Second operand 6 states and 417 transitions. [2020-10-11 18:27:59,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 104 transitions, 505 flow [2020-10-11 18:27:59,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 104 transitions, 446 flow, removed 8 selfloop flow, removed 17 redundant places. [2020-10-11 18:27:59,464 INFO L241 Difference]: Finished difference. Result has 118 places, 80 transitions, 307 flow [2020-10-11 18:27:59,464 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=307, PETRI_PLACES=118, PETRI_TRANSITIONS=80} [2020-10-11 18:27:59,464 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 37 predicate places. [2020-10-11 18:27:59,465 INFO L481 AbstractCegarLoop]: Abstraction has has 118 places, 80 transitions, 307 flow [2020-10-11 18:27:59,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:27:59,465 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:27:59,465 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:27:59,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 18:27:59,465 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:27:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:27:59,466 INFO L82 PathProgramCache]: Analyzing trace with hash -454673356, now seen corresponding path program 3 times [2020-10-11 18:27:59,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:27:59,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97899701] [2020-10-11 18:27:59,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:27:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:00,020 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 30 [2020-10-11 18:28:00,172 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2020-10-11 18:28:00,366 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-10-11 18:28:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:28:00,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97899701] [2020-10-11 18:28:00,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:00,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 18:28:00,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355608418] [2020-10-11 18:28:00,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 18:28:00,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:00,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 18:28:00,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-11 18:28:04,307 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 78 [2020-10-11 18:28:04,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 80 transitions, 307 flow. Second operand 14 states. [2020-10-11 18:28:04,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:04,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 78 [2020-10-11 18:28:04,309 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:04,596 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 33 [2020-10-11 18:28:04,988 INFO L129 PetriNetUnfolder]: 9/126 cut-off events. [2020-10-11 18:28:04,988 INFO L130 PetriNetUnfolder]: For 68/74 co-relation queries the response was YES. [2020-10-11 18:28:04,989 INFO L80 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 126 events. 9/126 cut-off events. For 68/74 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 363 event pairs, 0 based on Foata normal form. 1/123 useless extension candidates. Maximal degree in co-relation 283. Up to 13 conditions per place. [2020-10-11 18:28:04,990 INFO L132 encePairwiseOnDemand]: 67/78 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2020-10-11 18:28:04,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 79 transitions, 354 flow [2020-10-11 18:28:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:28:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:28:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 683 transitions. [2020-10-11 18:28:04,992 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7297008547008547 [2020-10-11 18:28:04,992 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 683 transitions. [2020-10-11 18:28:04,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 683 transitions. [2020-10-11 18:28:04,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:04,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 683 transitions. [2020-10-11 18:28:04,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:28:04,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:28:04,995 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:28:04,995 INFO L185 Difference]: Start difference. First operand has 118 places, 80 transitions, 307 flow. Second operand 12 states and 683 transitions. [2020-10-11 18:28:04,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 79 transitions, 354 flow [2020-10-11 18:28:04,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 79 transitions, 310 flow, removed 9 selfloop flow, removed 15 redundant places. [2020-10-11 18:28:04,998 INFO L241 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2020-10-11 18:28:04,998 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2020-10-11 18:28:04,998 INFO L341 CegarLoopForPetriNet]: 81 programPoint places, 19 predicate places. [2020-10-11 18:28:04,998 INFO L481 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2020-10-11 18:28:04,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 18:28:04,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 18:28:05,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:28:05 BasicIcfg [2020-10-11 18:28:05,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:28:05,006 INFO L168 Benchmark]: Toolchain (without parser) took 31713.76 ms. Allocated memory was 249.0 MB in the beginning and 744.0 MB in the end (delta: 494.9 MB). Free memory was 202.9 MB in the beginning and 391.8 MB in the end (delta: -188.9 MB). Peak memory consumption was 306.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:05,006 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:28:05,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.80 ms. Allocated memory was 249.0 MB in the beginning and 308.8 MB in the end (delta: 59.8 MB). Free memory was 202.9 MB in the beginning and 257.0 MB in the end (delta: -54.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:05,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.73 ms. Allocated memory is still 308.8 MB. Free memory was 257.0 MB in the beginning and 252.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:05,009 INFO L168 Benchmark]: Boogie Preprocessor took 49.00 ms. Allocated memory is still 308.8 MB. Free memory was 252.0 MB in the beginning and 249.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:05,009 INFO L168 Benchmark]: RCFGBuilder took 3271.26 ms. Allocated memory was 308.8 MB in the beginning and 370.1 MB in the end (delta: 61.3 MB). Free memory was 249.4 MB in the beginning and 188.7 MB in the end (delta: 60.7 MB). Peak memory consumption was 143.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:05,010 INFO L168 Benchmark]: TraceAbstraction took 27459.11 ms. Allocated memory was 370.1 MB in the beginning and 744.0 MB in the end (delta: 373.8 MB). Free memory was 185.1 MB in the beginning and 391.8 MB in the end (delta: -206.8 MB). Peak memory consumption was 167.1 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:05,013 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 843.80 ms. Allocated memory was 249.0 MB in the beginning and 308.8 MB in the end (delta: 59.8 MB). Free memory was 202.9 MB in the beginning and 257.0 MB in the end (delta: -54.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 82.73 ms. Allocated memory is still 308.8 MB. Free memory was 257.0 MB in the beginning and 252.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 49.00 ms. Allocated memory is still 308.8 MB. Free memory was 252.0 MB in the beginning and 249.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 3271.26 ms. Allocated memory was 308.8 MB in the beginning and 370.1 MB in the end (delta: 61.3 MB). Free memory was 249.4 MB in the beginning and 188.7 MB in the end (delta: 60.7 MB). Peak memory consumption was 143.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 27459.11 ms. Allocated memory was 370.1 MB in the beginning and 744.0 MB in the end (delta: 373.8 MB). Free memory was 185.1 MB in the beginning and 391.8 MB in the end (delta: -206.8 MB). Peak memory consumption was 167.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 77 locations, 2 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: 27.2s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 20.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 503 SDtfs, 722 SDslu, 3048 SDs, 0 SdLazy, 2570 SolverSat, 325 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=514occurred in iteration=8, 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, 0.9s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 651 NumberOfCodeBlocks, 651 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 639 ConstructedInterpolants, 0 QuantifiedInterpolants, 300518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...