/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/rfi002_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:27:57,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:27:57,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:27:57,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:27:57,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:27:57,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:27:57,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:27:57,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:27:57,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:27:57,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:27:57,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:27:57,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:27:57,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:27:57,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:27:57,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:27:57,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:27:57,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:27:57,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:27:57,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:27:57,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:27:57,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:27:57,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:27:57,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:27:57,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:27:57,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:27:57,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:27:57,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:27:57,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:27:57,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:27:57,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:27:57,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:27:57,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:27:57,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:27:57,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:27:57,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:27:57,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:27:57,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:27:57,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:27:57,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:27:57,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:27:57,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:27:57,310 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 18:27:57,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:27:57,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:27:57,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:27:57,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:27:57,332 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:27:57,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:27:57,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:27:57,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:27:57,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:27:57,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:27:57,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:27:57,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:27:57,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:27:57,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:27:57,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:27:57,334 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:27:57,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:27:57,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:27:57,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:27:57,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:27:57,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:27:57,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:27:57,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:27:57,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:27:57,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:27:57,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:27:57,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:27:57,337 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:27:57,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:27:57,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:27:57,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:27:57,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:27:57,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:27:57,632 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:27:57,633 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:27:57,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.opt.i [2020-10-11 18:27:57,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f82ced5/e849c6fd448a413daf12cbb06e4a24ce/FLAGa90aa8534 [2020-10-11 18:27:58,272 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:27:58,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.opt.i [2020-10-11 18:27:58,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f82ced5/e849c6fd448a413daf12cbb06e4a24ce/FLAGa90aa8534 [2020-10-11 18:27:58,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f82ced5/e849c6fd448a413daf12cbb06e4a24ce [2020-10-11 18:27:58,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:27:58,539 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:27:58,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:27:58,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:27:58,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:27:58,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:27:58" (1/1) ... [2020-10-11 18:27:58,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfcc862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:58, skipping insertion in model container [2020-10-11 18:27:58,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:27:58" (1/1) ... [2020-10-11 18:27:58,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:27:58,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:27:59,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:27:59,223 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:27:59,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:27:59,411 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:27:59,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59 WrapperNode [2020-10-11 18:27:59,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:27:59,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:27:59,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:27:59,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:27:59,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:27:59,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:27:59,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:27:59,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:27:59,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (1/1) ... [2020-10-11 18:27:59,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:27:59,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:27:59,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:27:59,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:27:59,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (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 18:27:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:27:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:27:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:27:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:27:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:27:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:27:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:27:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:27:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:27:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:27:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:27:59,640 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 18:28:03,297 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:28:03,298 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 18:28:03,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:28:03 BoogieIcfgContainer [2020-10-11 18:28:03,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:28:03,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:28:03,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:28:03,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:28:03,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:27:58" (1/3) ... [2020-10-11 18:28:03,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f05867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:28:03, skipping insertion in model container [2020-10-11 18:28:03,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:27:59" (2/3) ... [2020-10-11 18:28:03,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f05867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:28:03, skipping insertion in model container [2020-10-11 18:28:03,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:28:03" (3/3) ... [2020-10-11 18:28:03,313 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi002_power.opt.i [2020-10-11 18:28:03,329 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:28:03,340 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 18:28:03,342 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:28:03,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,470 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,470 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,470 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,471 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,473 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,475 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,479 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,480 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,484 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,485 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,485 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,485 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,485 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,486 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,490 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,491 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,503 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,504 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,505 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,510 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,511 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,511 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,512 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,513 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,514 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,514 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,515 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,515 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,516 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:03,537 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 18:28:03,560 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:28:03,561 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:28:03,561 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:28:03,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:28:03,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:28:03,561 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:28:03,562 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:28:03,562 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:28:03,575 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow [2020-10-11 18:28:03,616 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-11 18:28:03,616 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:03,621 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2020-10-11 18:28:03,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 170 flow [2020-10-11 18:28:03,627 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 78 transitions, 162 flow [2020-10-11 18:28:03,640 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2020-10-11 18:28:03,641 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:03,641 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:03,642 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 18:28:03,643 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:03,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:03,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1722193573, now seen corresponding path program 1 times [2020-10-11 18:28:03,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:03,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871287286] [2020-10-11 18:28:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:03,958 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 18:28:03,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871287286] [2020-10-11 18:28:03,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:03,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 18:28:03,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804296709] [2020-10-11 18:28:03,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 18:28:03,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:03,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 18:28:03,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 18:28:04,123 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 80 [2020-10-11 18:28:04,125 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 162 flow. Second operand 3 states. [2020-10-11 18:28:04,125 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:04,125 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 80 [2020-10-11 18:28:04,127 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:04,155 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2020-10-11 18:28:04,155 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:04,155 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 4/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-11 18:28:04,157 INFO L132 encePairwiseOnDemand]: 75/80 looper letters, 0 selfloop transitions, 2 changer transitions 9/75 dead transitions. [2020-10-11 18:28:04,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 75 transitions, 160 flow [2020-10-11 18:28:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 18:28:04,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 18:28:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2020-10-11 18:28:04,173 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9666666666666667 [2020-10-11 18:28:04,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2020-10-11 18:28:04,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2020-10-11 18:28:04,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:04,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2020-10-11 18:28:04,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 18:28:04,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 18:28:04,190 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 18:28:04,192 INFO L185 Difference]: Start difference. First operand has 83 places, 78 transitions, 162 flow. Second operand 3 states and 232 transitions. [2020-10-11 18:28:04,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 75 transitions, 160 flow [2020-10-11 18:28:04,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 75 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:28:04,202 INFO L241 Difference]: Finished difference. Result has 82 places, 66 transitions, 140 flow [2020-10-11 18:28:04,205 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2020-10-11 18:28:04,206 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, -1 predicate places. [2020-10-11 18:28:04,206 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 140 flow [2020-10-11 18:28:04,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 18:28:04,206 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:04,206 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] [2020-10-11 18:28:04,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:28:04,207 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:04,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:04,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1793725615, now seen corresponding path program 1 times [2020-10-11 18:28:04,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:04,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970780666] [2020-10-11 18:28:04,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:04,462 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 18:28:04,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970780666] [2020-10-11 18:28:04,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:04,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:28:04,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337262165] [2020-10-11 18:28:04,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:28:04,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:04,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:28:04,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:28:04,643 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 80 [2020-10-11 18:28:04,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 140 flow. Second operand 6 states. [2020-10-11 18:28:04,644 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:04,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 80 [2020-10-11 18:28:04,644 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:04,798 INFO L129 PetriNetUnfolder]: 3/89 cut-off events. [2020-10-11 18:28:04,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:04,799 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 89 events. 3/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 2/91 useless extension candidates. Maximal degree in co-relation 80. Up to 7 conditions per place. [2020-10-11 18:28:04,800 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 6 selfloop transitions, 2 changer transitions 10/76 dead transitions. [2020-10-11 18:28:04,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 76 transitions, 196 flow [2020-10-11 18:28:04,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:28:04,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:28:04,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2020-10-11 18:28:04,806 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2020-10-11 18:28:04,806 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2020-10-11 18:28:04,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2020-10-11 18:28:04,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:04,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2020-10-11 18:28:04,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:28:04,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:28:04,813 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:28:04,813 INFO L185 Difference]: Start difference. First operand has 82 places, 66 transitions, 140 flow. Second operand 9 states and 650 transitions. [2020-10-11 18:28:04,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 76 transitions, 196 flow [2020-10-11 18:28:04,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:28:04,817 INFO L241 Difference]: Finished difference. Result has 86 places, 66 transitions, 156 flow [2020-10-11 18:28:04,817 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=156, PETRI_PLACES=86, PETRI_TRANSITIONS=66} [2020-10-11 18:28:04,818 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 3 predicate places. [2020-10-11 18:28:04,818 INFO L481 AbstractCegarLoop]: Abstraction has has 86 places, 66 transitions, 156 flow [2020-10-11 18:28:04,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:28:04,818 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:04,818 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 18:28:04,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:28:04,819 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:04,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:04,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1104706575, now seen corresponding path program 1 times [2020-10-11 18:28:04,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:04,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572698112] [2020-10-11 18:28:04,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:05,095 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 18:28:05,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572698112] [2020-10-11 18:28:05,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:05,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:28:05,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739859468] [2020-10-11 18:28:05,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:28:05,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:05,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:28:05,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:28:05,280 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 80 [2020-10-11 18:28:05,280 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 66 transitions, 156 flow. Second operand 6 states. [2020-10-11 18:28:05,281 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:05,281 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 80 [2020-10-11 18:28:05,281 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:05,422 INFO L129 PetriNetUnfolder]: 3/92 cut-off events. [2020-10-11 18:28:05,422 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-11 18:28:05,424 INFO L80 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 92 events. 3/92 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 135 event pairs, 0 based on Foata normal form. 2/94 useless extension candidates. Maximal degree in co-relation 129. Up to 7 conditions per place. [2020-10-11 18:28:05,425 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 6 selfloop transitions, 2 changer transitions 10/76 dead transitions. [2020-10-11 18:28:05,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 76 transitions, 230 flow [2020-10-11 18:28:05,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:28:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:28:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2020-10-11 18:28:05,428 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2020-10-11 18:28:05,428 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2020-10-11 18:28:05,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2020-10-11 18:28:05,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:05,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2020-10-11 18:28:05,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:28:05,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:28:05,433 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:28:05,433 INFO L185 Difference]: Start difference. First operand has 86 places, 66 transitions, 156 flow. Second operand 9 states and 650 transitions. [2020-10-11 18:28:05,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 76 transitions, 230 flow [2020-10-11 18:28:05,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 76 transitions, 198 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:28:05,438 INFO L241 Difference]: Finished difference. Result has 87 places, 66 transitions, 160 flow [2020-10-11 18:28:05,438 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=160, PETRI_PLACES=87, PETRI_TRANSITIONS=66} [2020-10-11 18:28:05,438 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 4 predicate places. [2020-10-11 18:28:05,438 INFO L481 AbstractCegarLoop]: Abstraction has has 87 places, 66 transitions, 160 flow [2020-10-11 18:28:05,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:28:05,439 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:05,439 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 18:28:05,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:28:05,440 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:05,440 INFO L82 PathProgramCache]: Analyzing trace with hash -2143325172, now seen corresponding path program 1 times [2020-10-11 18:28:05,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:05,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213192555] [2020-10-11 18:28:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:05,996 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 18:28:05,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213192555] [2020-10-11 18:28:05,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:05,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-11 18:28:05,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061209248] [2020-10-11 18:28:05,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 18:28:05,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:05,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 18:28:05,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-11 18:28:07,834 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 80 [2020-10-11 18:28:07,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 66 transitions, 160 flow. Second operand 12 states. [2020-10-11 18:28:07,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:07,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 80 [2020-10-11 18:28:07,836 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:08,305 INFO L129 PetriNetUnfolder]: 92/305 cut-off events. [2020-10-11 18:28:08,306 INFO L130 PetriNetUnfolder]: For 110/173 co-relation queries the response was YES. [2020-10-11 18:28:08,311 INFO L80 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 305 events. 92/305 cut-off events. For 110/173 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1247 event pairs, 20 based on Foata normal form. 12/313 useless extension candidates. Maximal degree in co-relation 585. Up to 97 conditions per place. [2020-10-11 18:28:08,313 INFO L132 encePairwiseOnDemand]: 69/80 looper letters, 19 selfloop transitions, 7 changer transitions 22/97 dead transitions. [2020-10-11 18:28:08,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 97 transitions, 340 flow [2020-10-11 18:28:08,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 18:28:08,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 18:28:08,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 830 transitions. [2020-10-11 18:28:08,330 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7980769230769231 [2020-10-11 18:28:08,331 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 830 transitions. [2020-10-11 18:28:08,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 830 transitions. [2020-10-11 18:28:08,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:08,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 830 transitions. [2020-10-11 18:28:08,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 18:28:08,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 18:28:08,337 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 18:28:08,337 INFO L185 Difference]: Start difference. First operand has 87 places, 66 transitions, 160 flow. Second operand 13 states and 830 transitions. [2020-10-11 18:28:08,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 97 transitions, 340 flow [2020-10-11 18:28:08,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 97 transitions, 308 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:28:08,351 INFO L241 Difference]: Finished difference. Result has 93 places, 69 transitions, 203 flow [2020-10-11 18:28:08,351 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=203, PETRI_PLACES=93, PETRI_TRANSITIONS=69} [2020-10-11 18:28:08,351 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 10 predicate places. [2020-10-11 18:28:08,352 INFO L481 AbstractCegarLoop]: Abstraction has has 93 places, 69 transitions, 203 flow [2020-10-11 18:28:08,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 18:28:08,352 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:08,354 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 18:28:08,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:28:08,354 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:08,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:08,354 INFO L82 PathProgramCache]: Analyzing trace with hash -794680782, now seen corresponding path program 2 times [2020-10-11 18:28:08,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:08,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151274921] [2020-10-11 18:28:08,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:08,831 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 18:28:08,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151274921] [2020-10-11 18:28:08,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:08,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-11 18:28:08,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737232563] [2020-10-11 18:28:08,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 18:28:08,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:08,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 18:28:08,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-11 18:28:10,127 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 80 [2020-10-11 18:28:10,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 69 transitions, 203 flow. Second operand 12 states. [2020-10-11 18:28:10,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:10,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 80 [2020-10-11 18:28:10,128 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:10,646 INFO L129 PetriNetUnfolder]: 135/410 cut-off events. [2020-10-11 18:28:10,646 INFO L130 PetriNetUnfolder]: For 569/577 co-relation queries the response was YES. [2020-10-11 18:28:10,650 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 410 events. 135/410 cut-off events. For 569/577 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2017 event pairs, 23 based on Foata normal form. 10/408 useless extension candidates. Maximal degree in co-relation 1085. Up to 175 conditions per place. [2020-10-11 18:28:10,653 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 24 selfloop transitions, 10 changer transitions 19/100 dead transitions. [2020-10-11 18:28:10,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 100 transitions, 462 flow [2020-10-11 18:28:10,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 18:28:10,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 18:28:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 819 transitions. [2020-10-11 18:28:10,658 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7875 [2020-10-11 18:28:10,658 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 819 transitions. [2020-10-11 18:28:10,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 819 transitions. [2020-10-11 18:28:10,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:10,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 819 transitions. [2020-10-11 18:28:10,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 18:28:10,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 18:28:10,664 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 18:28:10,664 INFO L185 Difference]: Start difference. First operand has 93 places, 69 transitions, 203 flow. Second operand 13 states and 819 transitions. [2020-10-11 18:28:10,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 100 transitions, 462 flow [2020-10-11 18:28:10,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 100 transitions, 440 flow, removed 7 selfloop flow, removed 7 redundant places. [2020-10-11 18:28:10,675 INFO L241 Difference]: Finished difference. Result has 100 places, 74 transitions, 276 flow [2020-10-11 18:28:10,677 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=276, PETRI_PLACES=100, PETRI_TRANSITIONS=74} [2020-10-11 18:28:10,678 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 17 predicate places. [2020-10-11 18:28:10,678 INFO L481 AbstractCegarLoop]: Abstraction has has 100 places, 74 transitions, 276 flow [2020-10-11 18:28:10,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 18:28:10,678 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:10,679 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 18:28:10,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:28:10,679 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:10,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:10,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1681327106, now seen corresponding path program 3 times [2020-10-11 18:28:10,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:10,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463979111] [2020-10-11 18:28:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:11,166 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 18:28:11,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463979111] [2020-10-11 18:28:11,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:11,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-11 18:28:11,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131876035] [2020-10-11 18:28:11,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-11 18:28:11,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:11,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-11 18:28:11,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-11 18:28:13,155 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 80 [2020-10-11 18:28:13,157 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 74 transitions, 276 flow. Second operand 13 states. [2020-10-11 18:28:13,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:13,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 80 [2020-10-11 18:28:13,157 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:13,733 INFO L129 PetriNetUnfolder]: 147/454 cut-off events. [2020-10-11 18:28:13,733 INFO L130 PetriNetUnfolder]: For 1707/1811 co-relation queries the response was YES. [2020-10-11 18:28:13,736 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 454 events. 147/454 cut-off events. For 1707/1811 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2370 event pairs, 25 based on Foata normal form. 18/461 useless extension candidates. Maximal degree in co-relation 1525. Up to 206 conditions per place. [2020-10-11 18:28:13,742 INFO L132 encePairwiseOnDemand]: 65/80 looper letters, 26 selfloop transitions, 17 changer transitions 22/112 dead transitions. [2020-10-11 18:28:13,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 112 transitions, 691 flow [2020-10-11 18:28:13,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-11 18:28:13,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-11 18:28:13,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 871 transitions. [2020-10-11 18:28:13,747 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7776785714285714 [2020-10-11 18:28:13,747 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 871 transitions. [2020-10-11 18:28:13,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 871 transitions. [2020-10-11 18:28:13,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:13,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 871 transitions. [2020-10-11 18:28:13,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-11 18:28:13,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-11 18:28:13,753 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-11 18:28:13,754 INFO L185 Difference]: Start difference. First operand has 100 places, 74 transitions, 276 flow. Second operand 14 states and 871 transitions. [2020-10-11 18:28:13,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 112 transitions, 691 flow [2020-10-11 18:28:13,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 582 flow, removed 46 selfloop flow, removed 10 redundant places. [2020-10-11 18:28:13,767 INFO L241 Difference]: Finished difference. Result has 105 places, 84 transitions, 379 flow [2020-10-11 18:28:13,767 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=379, PETRI_PLACES=105, PETRI_TRANSITIONS=84} [2020-10-11 18:28:13,768 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 22 predicate places. [2020-10-11 18:28:13,768 INFO L481 AbstractCegarLoop]: Abstraction has has 105 places, 84 transitions, 379 flow [2020-10-11 18:28:13,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-11 18:28:13,768 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:13,768 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 18:28:13,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:28:13,770 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:13,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:13,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1176190768, now seen corresponding path program 4 times [2020-10-11 18:28:13,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:13,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642358051] [2020-10-11 18:28:13,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:14,258 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 18:28:14,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642358051] [2020-10-11 18:28:14,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:14,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 18:28:14,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506751876] [2020-10-11 18:28:14,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 18:28:14,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:14,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 18:28:14,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-11 18:28:15,106 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 80 [2020-10-11 18:28:15,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 84 transitions, 379 flow. Second operand 14 states. [2020-10-11 18:28:15,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:15,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 80 [2020-10-11 18:28:15,107 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:15,651 INFO L129 PetriNetUnfolder]: 150/454 cut-off events. [2020-10-11 18:28:15,651 INFO L130 PetriNetUnfolder]: For 2097/2302 co-relation queries the response was YES. [2020-10-11 18:28:15,654 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1858 conditions, 454 events. 150/454 cut-off events. For 2097/2302 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2352 event pairs, 27 based on Foata normal form. 36/479 useless extension candidates. Maximal degree in co-relation 1794. Up to 226 conditions per place. [2020-10-11 18:28:15,657 INFO L132 encePairwiseOnDemand]: 65/80 looper letters, 34 selfloop transitions, 18 changer transitions 13/111 dead transitions. [2020-10-11 18:28:15,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 111 transitions, 757 flow [2020-10-11 18:28:15,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:28:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:28:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 733 transitions. [2020-10-11 18:28:15,661 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7635416666666667 [2020-10-11 18:28:15,661 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 733 transitions. [2020-10-11 18:28:15,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 733 transitions. [2020-10-11 18:28:15,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:15,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 733 transitions. [2020-10-11 18:28:15,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:28:15,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:28:15,666 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:28:15,666 INFO L185 Difference]: Start difference. First operand has 105 places, 84 transitions, 379 flow. Second operand 12 states and 733 transitions. [2020-10-11 18:28:15,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 111 transitions, 757 flow [2020-10-11 18:28:15,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 111 transitions, 724 flow, removed 10 selfloop flow, removed 6 redundant places. [2020-10-11 18:28:15,674 INFO L241 Difference]: Finished difference. Result has 109 places, 93 transitions, 492 flow [2020-10-11 18:28:15,674 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=492, PETRI_PLACES=109, PETRI_TRANSITIONS=93} [2020-10-11 18:28:15,674 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 26 predicate places. [2020-10-11 18:28:15,675 INFO L481 AbstractCegarLoop]: Abstraction has has 109 places, 93 transitions, 492 flow [2020-10-11 18:28:15,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 18:28:15,675 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:15,675 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 18:28:15,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:28:15,675 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:15,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:15,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1182354028, now seen corresponding path program 5 times [2020-10-11 18:28:15,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:15,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400813073] [2020-10-11 18:28:15,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:15,899 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 18:28:15,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400813073] [2020-10-11 18:28:15,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:15,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-11 18:28:15,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476652334] [2020-10-11 18:28:15,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 18:28:15,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:15,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 18:28:15,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-11 18:28:17,065 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 80 [2020-10-11 18:28:17,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 93 transitions, 492 flow. Second operand 9 states. [2020-10-11 18:28:17,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:17,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 80 [2020-10-11 18:28:17,067 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:17,504 INFO L129 PetriNetUnfolder]: 149/460 cut-off events. [2020-10-11 18:28:17,504 INFO L130 PetriNetUnfolder]: For 2481/2915 co-relation queries the response was YES. [2020-10-11 18:28:17,506 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2029 conditions, 460 events. 149/460 cut-off events. For 2481/2915 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2430 event pairs, 16 based on Foata normal form. 39/490 useless extension candidates. Maximal degree in co-relation 1963. Up to 220 conditions per place. [2020-10-11 18:28:17,509 INFO L132 encePairwiseOnDemand]: 66/80 looper letters, 36 selfloop transitions, 24 changer transitions 13/121 dead transitions. [2020-10-11 18:28:17,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 121 transitions, 937 flow [2020-10-11 18:28:17,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:28:17,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:28:17,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 631 transitions. [2020-10-11 18:28:17,513 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.78875 [2020-10-11 18:28:17,513 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 631 transitions. [2020-10-11 18:28:17,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 631 transitions. [2020-10-11 18:28:17,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:17,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 631 transitions. [2020-10-11 18:28:17,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:28:17,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:28:17,520 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:28:17,520 INFO L185 Difference]: Start difference. First operand has 109 places, 93 transitions, 492 flow. Second operand 10 states and 631 transitions. [2020-10-11 18:28:17,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 121 transitions, 937 flow [2020-10-11 18:28:17,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 121 transitions, 874 flow, removed 20 selfloop flow, removed 9 redundant places. [2020-10-11 18:28:17,536 INFO L241 Difference]: Finished difference. Result has 111 places, 104 transitions, 651 flow [2020-10-11 18:28:17,537 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=651, PETRI_PLACES=111, PETRI_TRANSITIONS=104} [2020-10-11 18:28:17,537 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 28 predicate places. [2020-10-11 18:28:17,537 INFO L481 AbstractCegarLoop]: Abstraction has has 111 places, 104 transitions, 651 flow [2020-10-11 18:28:17,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 18:28:17,537 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:17,538 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] [2020-10-11 18:28:17,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:28:17,538 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:17,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:17,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1762888229, now seen corresponding path program 1 times [2020-10-11 18:28:17,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:17,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921748121] [2020-10-11 18:28:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:17,745 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 18:28:17,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921748121] [2020-10-11 18:28:17,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:17,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:28:17,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456921126] [2020-10-11 18:28:17,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:28:17,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:17,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:28:17,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:28:18,202 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 80 [2020-10-11 18:28:18,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 104 transitions, 651 flow. Second operand 7 states. [2020-10-11 18:28:18,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:18,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 80 [2020-10-11 18:28:18,203 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:18,552 INFO L129 PetriNetUnfolder]: 158/521 cut-off events. [2020-10-11 18:28:18,552 INFO L130 PetriNetUnfolder]: For 2980/3510 co-relation queries the response was YES. [2020-10-11 18:28:18,555 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2435 conditions, 521 events. 158/521 cut-off events. For 2980/3510 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3079 event pairs, 29 based on Foata normal form. 66/578 useless extension candidates. Maximal degree in co-relation 2367. Up to 193 conditions per place. [2020-10-11 18:28:18,558 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 42 selfloop transitions, 10 changer transitions 31/133 dead transitions. [2020-10-11 18:28:18,558 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 133 transitions, 1135 flow [2020-10-11 18:28:18,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:28:18,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:28:18,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 465 transitions. [2020-10-11 18:28:18,561 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8303571428571429 [2020-10-11 18:28:18,562 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 465 transitions. [2020-10-11 18:28:18,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 465 transitions. [2020-10-11 18:28:18,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:18,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 465 transitions. [2020-10-11 18:28:18,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:28:18,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:28:18,565 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:28:18,565 INFO L185 Difference]: Start difference. First operand has 111 places, 104 transitions, 651 flow. Second operand 7 states and 465 transitions. [2020-10-11 18:28:18,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 133 transitions, 1135 flow [2020-10-11 18:28:18,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 133 transitions, 1030 flow, removed 47 selfloop flow, removed 7 redundant places. [2020-10-11 18:28:18,581 INFO L241 Difference]: Finished difference. Result has 112 places, 102 transitions, 607 flow [2020-10-11 18:28:18,581 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=607, PETRI_PLACES=112, PETRI_TRANSITIONS=102} [2020-10-11 18:28:18,581 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 29 predicate places. [2020-10-11 18:28:18,582 INFO L481 AbstractCegarLoop]: Abstraction has has 112 places, 102 transitions, 607 flow [2020-10-11 18:28:18,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:28:18,582 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:18,582 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] [2020-10-11 18:28:18,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 18:28:18,582 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:18,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:18,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1550068067, now seen corresponding path program 2 times [2020-10-11 18:28:18,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:18,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659468812] [2020-10-11 18:28:18,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:18,817 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 18:28:18,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659468812] [2020-10-11 18:28:18,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:18,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-11 18:28:18,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223948573] [2020-10-11 18:28:18,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 18:28:18,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:18,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 18:28:18,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-11 18:28:19,423 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 80 [2020-10-11 18:28:19,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 102 transitions, 607 flow. Second operand 9 states. [2020-10-11 18:28:19,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:19,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 80 [2020-10-11 18:28:19,424 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:19,772 INFO L129 PetriNetUnfolder]: 109/388 cut-off events. [2020-10-11 18:28:19,773 INFO L130 PetriNetUnfolder]: For 2121/2679 co-relation queries the response was YES. [2020-10-11 18:28:19,774 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1746 conditions, 388 events. 109/388 cut-off events. For 2121/2679 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1942 event pairs, 19 based on Foata normal form. 53/432 useless extension candidates. Maximal degree in co-relation 1679. Up to 159 conditions per place. [2020-10-11 18:28:19,777 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 36 selfloop transitions, 13 changer transitions 24/122 dead transitions. [2020-10-11 18:28:19,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 122 transitions, 960 flow [2020-10-11 18:28:19,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 18:28:19,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 18:28:19,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 518 transitions. [2020-10-11 18:28:19,780 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.809375 [2020-10-11 18:28:19,780 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 518 transitions. [2020-10-11 18:28:19,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 518 transitions. [2020-10-11 18:28:19,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:19,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 518 transitions. [2020-10-11 18:28:19,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 18:28:19,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 18:28:19,784 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 18:28:19,784 INFO L185 Difference]: Start difference. First operand has 112 places, 102 transitions, 607 flow. Second operand 8 states and 518 transitions. [2020-10-11 18:28:19,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 122 transitions, 960 flow [2020-10-11 18:28:19,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 122 transitions, 934 flow, removed 8 selfloop flow, removed 5 redundant places. [2020-10-11 18:28:19,794 INFO L241 Difference]: Finished difference. Result has 115 places, 98 transitions, 592 flow [2020-10-11 18:28:19,795 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=592, PETRI_PLACES=115, PETRI_TRANSITIONS=98} [2020-10-11 18:28:19,795 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 32 predicate places. [2020-10-11 18:28:19,795 INFO L481 AbstractCegarLoop]: Abstraction has has 115 places, 98 transitions, 592 flow [2020-10-11 18:28:19,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 18:28:19,795 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:19,796 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] [2020-10-11 18:28:19,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 18:28:19,796 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:19,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:19,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1754722282, now seen corresponding path program 1 times [2020-10-11 18:28:19,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:19,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119026294] [2020-10-11 18:28:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:20,277 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 25 [2020-10-11 18:28:20,379 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 18:28:20,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119026294] [2020-10-11 18:28:20,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:20,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-11 18:28:20,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857822294] [2020-10-11 18:28:20,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-11 18:28:20,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:20,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-11 18:28:20,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-11 18:28:21,497 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 80 [2020-10-11 18:28:21,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 98 transitions, 592 flow. Second operand 15 states. [2020-10-11 18:28:21,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:21,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 80 [2020-10-11 18:28:21,499 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:22,116 INFO L129 PetriNetUnfolder]: 81/315 cut-off events. [2020-10-11 18:28:22,116 INFO L130 PetriNetUnfolder]: For 1810/2438 co-relation queries the response was YES. [2020-10-11 18:28:22,118 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1413 conditions, 315 events. 81/315 cut-off events. For 1810/2438 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1454 event pairs, 14 based on Foata normal form. 38/346 useless extension candidates. Maximal degree in co-relation 1343. Up to 113 conditions per place. [2020-10-11 18:28:22,120 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 44 selfloop transitions, 15 changer transitions 14/119 dead transitions. [2020-10-11 18:28:22,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 119 transitions, 983 flow [2020-10-11 18:28:22,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:28:22,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:28:22,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 902 transitions. [2020-10-11 18:28:22,132 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7516666666666667 [2020-10-11 18:28:22,132 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 902 transitions. [2020-10-11 18:28:22,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 902 transitions. [2020-10-11 18:28:22,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:22,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 902 transitions. [2020-10-11 18:28:22,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:28:22,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:28:22,139 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:28:22,139 INFO L185 Difference]: Start difference. First operand has 115 places, 98 transitions, 592 flow. Second operand 15 states and 902 transitions. [2020-10-11 18:28:22,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 119 transitions, 983 flow [2020-10-11 18:28:22,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 119 transitions, 943 flow, removed 13 selfloop flow, removed 6 redundant places. [2020-10-11 18:28:22,151 INFO L241 Difference]: Finished difference. Result has 126 places, 98 transitions, 620 flow [2020-10-11 18:28:22,151 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=620, PETRI_PLACES=126, PETRI_TRANSITIONS=98} [2020-10-11 18:28:22,151 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 43 predicate places. [2020-10-11 18:28:22,152 INFO L481 AbstractCegarLoop]: Abstraction has has 126 places, 98 transitions, 620 flow [2020-10-11 18:28:22,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-11 18:28:22,152 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:22,152 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] [2020-10-11 18:28:22,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 18:28:22,153 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:22,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1805715999, now seen corresponding path program 3 times [2020-10-11 18:28:22,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:22,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667535135] [2020-10-11 18:28:22,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:22,545 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 26 [2020-10-11 18:28:22,649 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 18:28:22,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667535135] [2020-10-11 18:28:22,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:22,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-11 18:28:22,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664944773] [2020-10-11 18:28:22,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-11 18:28:22,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:22,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-11 18:28:22,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-11 18:28:24,653 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 80 [2020-10-11 18:28:24,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 98 transitions, 620 flow. Second operand 15 states. [2020-10-11 18:28:24,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:24,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 80 [2020-10-11 18:28:24,654 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:25,216 INFO L129 PetriNetUnfolder]: 103/366 cut-off events. [2020-10-11 18:28:25,216 INFO L130 PetriNetUnfolder]: For 2119/2744 co-relation queries the response was YES. [2020-10-11 18:28:25,218 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 366 events. 103/366 cut-off events. For 2119/2744 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1868 event pairs, 13 based on Foata normal form. 38/397 useless extension candidates. Maximal degree in co-relation 1635. Up to 142 conditions per place. [2020-10-11 18:28:25,221 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 41 selfloop transitions, 8 changer transitions 37/130 dead transitions. [2020-10-11 18:28:25,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 130 transitions, 1125 flow [2020-10-11 18:28:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:28:25,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:28:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 712 transitions. [2020-10-11 18:28:25,224 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7416666666666667 [2020-10-11 18:28:25,224 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 712 transitions. [2020-10-11 18:28:25,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 712 transitions. [2020-10-11 18:28:25,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:25,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 712 transitions. [2020-10-11 18:28:25,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:28:25,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:28:25,229 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:28:25,229 INFO L185 Difference]: Start difference. First operand has 126 places, 98 transitions, 620 flow. Second operand 12 states and 712 transitions. [2020-10-11 18:28:25,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 130 transitions, 1125 flow [2020-10-11 18:28:25,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 130 transitions, 1071 flow, removed 16 selfloop flow, removed 13 redundant places. [2020-10-11 18:28:25,240 INFO L241 Difference]: Finished difference. Result has 123 places, 90 transitions, 512 flow [2020-10-11 18:28:25,240 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=512, PETRI_PLACES=123, PETRI_TRANSITIONS=90} [2020-10-11 18:28:25,241 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 40 predicate places. [2020-10-11 18:28:25,241 INFO L481 AbstractCegarLoop]: Abstraction has has 123 places, 90 transitions, 512 flow [2020-10-11 18:28:25,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-11 18:28:25,241 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:25,241 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] [2020-10-11 18:28:25,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 18:28:25,242 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:25,242 INFO L82 PathProgramCache]: Analyzing trace with hash -565626819, now seen corresponding path program 4 times [2020-10-11 18:28:25,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:25,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194012716] [2020-10-11 18:28:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:25,718 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 18:28:25,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194012716] [2020-10-11 18:28:25,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:25,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-11 18:28:25,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047945537] [2020-10-11 18:28:25,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-11 18:28:25,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:25,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-11 18:28:25,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-11 18:28:26,968 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 80 [2020-10-11 18:28:26,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 90 transitions, 512 flow. Second operand 15 states. [2020-10-11 18:28:26,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:26,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 80 [2020-10-11 18:28:26,969 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:27,712 INFO L129 PetriNetUnfolder]: 72/280 cut-off events. [2020-10-11 18:28:27,712 INFO L130 PetriNetUnfolder]: For 1266/1432 co-relation queries the response was YES. [2020-10-11 18:28:27,714 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 280 events. 72/280 cut-off events. For 1266/1432 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1161 event pairs, 3 based on Foata normal form. 35/312 useless extension candidates. Maximal degree in co-relation 1138. Up to 104 conditions per place. [2020-10-11 18:28:27,715 INFO L132 encePairwiseOnDemand]: 67/80 looper letters, 37 selfloop transitions, 18 changer transitions 17/117 dead transitions. [2020-10-11 18:28:27,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 117 transitions, 921 flow [2020-10-11 18:28:27,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-11 18:28:27,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-11 18:28:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 954 transitions. [2020-10-11 18:28:27,719 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7453125 [2020-10-11 18:28:27,719 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 954 transitions. [2020-10-11 18:28:27,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 954 transitions. [2020-10-11 18:28:27,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:27,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 954 transitions. [2020-10-11 18:28:27,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. [2020-10-11 18:28:27,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 17 states. [2020-10-11 18:28:27,727 INFO L81 ComplementDD]: Finished complementDD. Result 17 states. [2020-10-11 18:28:27,727 INFO L185 Difference]: Start difference. First operand has 123 places, 90 transitions, 512 flow. Second operand 16 states and 954 transitions. [2020-10-11 18:28:27,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 117 transitions, 921 flow [2020-10-11 18:28:27,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 117 transitions, 868 flow, removed 18 selfloop flow, removed 11 redundant places. [2020-10-11 18:28:27,737 INFO L241 Difference]: Finished difference. Result has 128 places, 92 transitions, 556 flow [2020-10-11 18:28:27,737 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=556, PETRI_PLACES=128, PETRI_TRANSITIONS=92} [2020-10-11 18:28:27,737 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 45 predicate places. [2020-10-11 18:28:27,738 INFO L481 AbstractCegarLoop]: Abstraction has has 128 places, 92 transitions, 556 flow [2020-10-11 18:28:27,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-11 18:28:27,738 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:27,738 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] [2020-10-11 18:28:27,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 18:28:27,738 INFO L429 AbstractCegarLoop]: === Iteration 14 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:27,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:27,739 INFO L82 PathProgramCache]: Analyzing trace with hash -2009281283, now seen corresponding path program 5 times [2020-10-11 18:28:27,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:27,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211620227] [2020-10-11 18:28:27,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:28,045 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 18:28:28,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211620227] [2020-10-11 18:28:28,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:28,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-11 18:28:28,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713333214] [2020-10-11 18:28:28,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 18:28:28,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:28,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 18:28:28,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-11 18:28:29,554 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 80 [2020-10-11 18:28:29,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 92 transitions, 556 flow. Second operand 10 states. [2020-10-11 18:28:29,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:29,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 80 [2020-10-11 18:28:29,555 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:29,997 INFO L129 PetriNetUnfolder]: 58/252 cut-off events. [2020-10-11 18:28:29,998 INFO L130 PetriNetUnfolder]: For 1387/1550 co-relation queries the response was YES. [2020-10-11 18:28:29,999 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 252 events. 58/252 cut-off events. For 1387/1550 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1036 event pairs, 4 based on Foata normal form. 33/282 useless extension candidates. Maximal degree in co-relation 1109. Up to 91 conditions per place. [2020-10-11 18:28:30,001 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 26 selfloop transitions, 2 changer transitions 35/110 dead transitions. [2020-10-11 18:28:30,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 110 transitions, 894 flow [2020-10-11 18:28:30,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:28:30,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:28:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 626 transitions. [2020-10-11 18:28:30,003 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7825 [2020-10-11 18:28:30,003 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 626 transitions. [2020-10-11 18:28:30,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 626 transitions. [2020-10-11 18:28:30,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:30,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 626 transitions. [2020-10-11 18:28:30,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:28:30,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:28:30,007 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:28:30,007 INFO L185 Difference]: Start difference. First operand has 128 places, 92 transitions, 556 flow. Second operand 10 states and 626 transitions. [2020-10-11 18:28:30,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 110 transitions, 894 flow [2020-10-11 18:28:30,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 110 transitions, 796 flow, removed 32 selfloop flow, removed 15 redundant places. [2020-10-11 18:28:30,018 INFO L241 Difference]: Finished difference. Result has 120 places, 75 transitions, 335 flow [2020-10-11 18:28:30,019 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=335, PETRI_PLACES=120, PETRI_TRANSITIONS=75} [2020-10-11 18:28:30,019 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 37 predicate places. [2020-10-11 18:28:30,019 INFO L481 AbstractCegarLoop]: Abstraction has has 120 places, 75 transitions, 335 flow [2020-10-11 18:28:30,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 18:28:30,019 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:30,020 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] [2020-10-11 18:28:30,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-11 18:28:30,020 INFO L429 AbstractCegarLoop]: === Iteration 15 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:30,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:30,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1007950385, now seen corresponding path program 1 times [2020-10-11 18:28:30,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:30,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490462361] [2020-10-11 18:28:30,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:30,601 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 18:28:30,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490462361] [2020-10-11 18:28:30,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:30,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:28:30,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140886663] [2020-10-11 18:28:30,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:28:30,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:30,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:28:30,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:28:33,768 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 80 [2020-10-11 18:28:33,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 75 transitions, 335 flow. Second operand 16 states. [2020-10-11 18:28:33,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:33,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 80 [2020-10-11 18:28:33,769 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:34,279 INFO L129 PetriNetUnfolder]: 15/117 cut-off events. [2020-10-11 18:28:34,279 INFO L130 PetriNetUnfolder]: For 374/396 co-relation queries the response was YES. [2020-10-11 18:28:34,280 INFO L80 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 117 events. 15/117 cut-off events. For 374/396 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 235 event pairs, 3 based on Foata normal form. 7/121 useless extension candidates. Maximal degree in co-relation 388. Up to 27 conditions per place. [2020-10-11 18:28:34,280 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2020-10-11 18:28:34,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 79 transitions, 464 flow [2020-10-11 18:28:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 18:28:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 18:28:34,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 733 transitions. [2020-10-11 18:28:34,283 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7048076923076924 [2020-10-11 18:28:34,284 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 733 transitions. [2020-10-11 18:28:34,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 733 transitions. [2020-10-11 18:28:34,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:34,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 733 transitions. [2020-10-11 18:28:34,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 18:28:34,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 18:28:34,288 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 18:28:34,288 INFO L185 Difference]: Start difference. First operand has 120 places, 75 transitions, 335 flow. Second operand 13 states and 733 transitions. [2020-10-11 18:28:34,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 79 transitions, 464 flow [2020-10-11 18:28:34,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 79 transitions, 398 flow, removed 15 selfloop flow, removed 18 redundant places. [2020-10-11 18:28:34,292 INFO L241 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2020-10-11 18:28:34,292 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2020-10-11 18:28:34,293 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 20 predicate places. [2020-10-11 18:28:34,293 INFO L481 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2020-10-11 18:28:34,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:28:34,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-11 18:28:34,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:28:34 BasicIcfg [2020-10-11 18:28:34,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:28:34,302 INFO L168 Benchmark]: Toolchain (without parser) took 35763.06 ms. Allocated memory was 252.2 MB in the beginning and 813.2 MB in the end (delta: 561.0 MB). Free memory was 207.5 MB in the beginning and 244.7 MB in the end (delta: -37.1 MB). Peak memory consumption was 523.9 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:34,302 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:28:34,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.18 ms. Allocated memory was 252.2 MB in the beginning and 317.2 MB in the end (delta: 65.0 MB). Free memory was 207.5 MB in the beginning and 265.4 MB in the end (delta: -57.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:34,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.74 ms. Allocated memory is still 317.2 MB. Free memory was 265.4 MB in the beginning and 260.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:34,304 INFO L168 Benchmark]: Boogie Preprocessor took 49.37 ms. Allocated memory is still 317.2 MB. Free memory was 260.4 MB in the beginning and 257.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:34,305 INFO L168 Benchmark]: RCFGBuilder took 3764.07 ms. Allocated memory was 317.2 MB in the beginning and 372.8 MB in the end (delta: 55.6 MB). Free memory was 257.9 MB in the beginning and 163.0 MB in the end (delta: 94.8 MB). Peak memory consumption was 150.4 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:34,306 INFO L168 Benchmark]: TraceAbstraction took 30996.34 ms. Allocated memory was 372.8 MB in the beginning and 813.2 MB in the end (delta: 440.4 MB). Free memory was 163.0 MB in the beginning and 244.7 MB in the end (delta: -81.6 MB). Peak memory consumption was 358.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:34,310 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 872.18 ms. Allocated memory was 252.2 MB in the beginning and 317.2 MB in the end (delta: 65.0 MB). Free memory was 207.5 MB in the beginning and 265.4 MB in the end (delta: -57.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 74.74 ms. Allocated memory is still 317.2 MB. Free memory was 265.4 MB in the beginning and 260.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 49.37 ms. Allocated memory is still 317.2 MB. Free memory was 260.4 MB in the beginning and 257.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 3764.07 ms. Allocated memory was 317.2 MB in the beginning and 372.8 MB in the end (delta: 55.6 MB). Free memory was 257.9 MB in the beginning and 163.0 MB in the end (delta: 94.8 MB). Peak memory consumption was 150.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 30996.34 ms. Allocated memory was 372.8 MB in the beginning and 813.2 MB in the end (delta: 440.4 MB). Free memory was 163.0 MB in the beginning and 244.7 MB in the end (delta: -81.6 MB). Peak memory consumption was 358.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: 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, 79 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: 30.7s, OverallIterations: 15, TraceHistogramMax: 1, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 328 SDtfs, 1043 SDslu, 3602 SDs, 0 SdLazy, 3639 SolverSat, 653 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=651occurred 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, 1.2s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 832 NumberOfCodeBlocks, 832 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 817 ConstructedInterpolants, 0 QuantifiedInterpolants, 326343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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...