/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:45:09,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:45:09,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:45:09,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:45:09,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:45:09,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:45:09,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:45:09,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:45:09,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:45:09,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:45:09,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:45:09,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:45:09,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:45:09,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:45:09,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:45:09,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:45:09,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:45:09,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:45:09,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:45:09,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:45:09,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:45:09,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:45:09,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:45:09,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:45:09,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:45:09,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:45:09,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:45:09,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:45:09,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:45:09,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:45:09,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:45:09,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:45:09,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:45:09,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:45:09,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:45:09,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:45:09,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:45:09,661 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:45:09,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:45:09,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:45:09,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:45:09,665 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:45:09,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:45:09,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:45:09,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:45:09,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:45:09,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:45:09,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:45:09,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:45:09,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:45:09,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:45:09,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:45:09,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:45:09,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:45:09,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:45:09,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:45:09,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:45:09,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:45:09,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:45:09,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:45:09,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:45:09,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:45:09,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:45:09,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:45:09,671 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:45:09,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:45:09,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:45:09,671 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:45:10,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:45:10,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:45:10,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:45:10,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:45:10,158 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:45:10,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2021-04-28 23:45:10,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f34526eb/afa522f7cd3643fd8f533cfbd777db60/FLAG6abb637df [2021-04-28 23:45:11,142 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:45:11,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i [2021-04-28 23:45:11,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f34526eb/afa522f7cd3643fd8f533cfbd777db60/FLAG6abb637df [2021-04-28 23:45:11,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f34526eb/afa522f7cd3643fd8f533cfbd777db60 [2021-04-28 23:45:11,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:45:11,460 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:45:11,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:45:11,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:45:11,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:45:11,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:45:11" (1/1) ... [2021-04-28 23:45:11,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48cdbe60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:11, skipping insertion in model container [2021-04-28 23:45:11,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:45:11" (1/1) ... [2021-04-28 23:45:11,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:45:11,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:45:11,728 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i[949,962] [2021-04-28 23:45:12,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:45:12,135 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:45:12,158 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.opt.i[949,962] [2021-04-28 23:45:12,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:45:12,408 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:45:12,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12 WrapperNode [2021-04-28 23:45:12,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:45:12,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:45:12,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:45:12,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:45:12,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:45:12,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:45:12,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:45:12,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:45:12,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... [2021-04-28 23:45:12,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:45:12,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:45:12,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:45:12,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:45:12,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:45:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:45:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:45:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:45:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:45:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:45:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:45:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:45:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:45:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:45:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:45:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:45:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:45:12,736 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:45:13,281 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:45:13,282 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:45:13,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:45:13 BoogieIcfgContainer [2021-04-28 23:45:13,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:45:13,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:45:13,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:45:13,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:45:13,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:45:11" (1/3) ... [2021-04-28 23:45:13,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d0c744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:45:13, skipping insertion in model container [2021-04-28 23:45:13,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:45:12" (2/3) ... [2021-04-28 23:45:13,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d0c744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:45:13, skipping insertion in model container [2021-04-28 23:45:13,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:45:13" (3/3) ... [2021-04-28 23:45:13,306 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.opt.i [2021-04-28 23:45:13,321 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:45:13,329 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:45:13,331 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:45:13,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,381 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,383 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,383 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,387 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,388 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,389 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,389 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,392 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,393 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,402 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,402 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:45:13,404 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:45:13,438 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-28 23:45:13,476 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:45:13,477 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:45:13,477 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:45:13,477 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:45:13,477 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:45:13,478 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:45:13,478 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:45:13,478 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:45:13,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 60 transitions, 130 flow [2021-04-28 23:45:13,548 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-04-28 23:45:13,548 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:45:13,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 58 events. 2/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-28 23:45:13,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 60 transitions, 130 flow [2021-04-28 23:45:13,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 48 transitions, 102 flow [2021-04-28 23:45:13,563 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:45:13,585 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 48 transitions, 102 flow [2021-04-28 23:45:13,591 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 48 transitions, 102 flow [2021-04-28 23:45:13,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 48 transitions, 102 flow [2021-04-28 23:45:13,610 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2021-04-28 23:45:13,610 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:45:13,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-28 23:45:13,615 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-28 23:45:18,056 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:45:18,237 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:45:18,408 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:45:18,592 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:45:18,771 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:45:18,920 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:45:19,087 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:45:19,260 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:45:19,425 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:45:19,584 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:45:20,900 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:45:21,122 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:45:21,291 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:45:21,627 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:45:21,835 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:45:22,010 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:45:22,178 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:45:22,466 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-28 23:45:22,775 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-28 23:45:23,032 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:45:23,246 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:45:23,530 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-04-28 23:45:23,842 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-04-28 23:45:24,108 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:45:24,357 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:45:24,572 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:45:24,792 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:45:24,969 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:45:25,301 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:45:25,525 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:45:25,626 INFO L158 LiptonReduction]: Checked pairs total: 3396 [2021-04-28 23:45:25,626 INFO L160 LiptonReduction]: Total number of compositions: 95 [2021-04-28 23:45:25,631 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12070 [2021-04-28 23:45:25,655 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2021-04-28 23:45:25,655 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:45:25,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:45:25,657 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-28 23:45:25,657 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:45:25,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:45:25,666 INFO L82 PathProgramCache]: Analyzing trace with hash -923406847, now seen corresponding path program 1 times [2021-04-28 23:45:25,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:45:25,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048466681] [2021-04-28 23:45:25,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:45:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:45:25,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:26,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:45:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:45:26,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048466681] [2021-04-28 23:45:26,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:45:26,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:45:26,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966747763] [2021-04-28 23:45:26,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:45:26,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:45:26,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:45:26,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:45:26,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 155 [2021-04-28 23:45:26,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:45:26,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 155 [2021-04-28 23:45:26,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:45:26,221 INFO L129 PetriNetUnfolder]: 21/101 cut-off events. [2021-04-28 23:45:26,221 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:45:26,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 101 events. 21/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 494 event pairs, 6 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 123. Up to 43 conditions per place. [2021-04-28 23:45:26,227 INFO L132 encePairwiseOnDemand]: 145/155 looper letters, 3 selfloop transitions, 3 changer transitions 35/66 dead transitions. [2021-04-28 23:45:26,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 66 transitions, 178 flow [2021-04-28 23:45:26,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:45:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:45:26,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2021-04-28 23:45:26,259 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7827956989247312 [2021-04-28 23:45:26,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2021-04-28 23:45:26,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2021-04-28 23:45:26,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:45:26,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2021-04-28 23:45:26,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,292 INFO L185 Difference]: Start difference. First operand has 67 places, 60 transitions, 126 flow. Second operand 3 states and 364 transitions. [2021-04-28 23:45:26,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 66 transitions, 178 flow [2021-04-28 23:45:26,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 66 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:45:26,300 INFO L241 Difference]: Finished difference. Result has 68 places, 31 transitions, 81 flow [2021-04-28 23:45:26,303 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=68, PETRI_TRANSITIONS=31} [2021-04-28 23:45:26,305 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, 1 predicate places. [2021-04-28 23:45:26,306 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:45:26,306 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 31 transitions, 81 flow [2021-04-28 23:45:26,306 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 31 transitions, 81 flow [2021-04-28 23:45:26,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 81 flow [2021-04-28 23:45:26,314 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2021-04-28 23:45:26,314 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:45:26,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 41 events. 3/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 149 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 52. Up to 10 conditions per place. [2021-04-28 23:45:26,316 INFO L146 LiptonReduction]: Number of co-enabled transitions 450 [2021-04-28 23:45:26,341 INFO L158 LiptonReduction]: Checked pairs total: 178 [2021-04-28 23:45:26,341 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:45:26,341 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-28 23:45:26,344 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 81 flow [2021-04-28 23:45:26,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:45:26,345 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:45:26,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:45:26,345 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:45:26,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:45:26,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1439157315, now seen corresponding path program 1 times [2021-04-28 23:45:26,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:45:26,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236682332] [2021-04-28 23:45:26,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:45:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:45:26,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:26,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:45:26,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:45:26,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236682332] [2021-04-28 23:45:26,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:45:26,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:45:26,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908522674] [2021-04-28 23:45:26,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:45:26,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:45:26,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:45:26,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:45:26,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 155 [2021-04-28 23:45:26,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:45:26,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 155 [2021-04-28 23:45:26,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:45:26,440 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2021-04-28 23:45:26,440 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-28 23:45:26,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 38 events. 3/38 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 148 event pairs, 1 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-04-28 23:45:26,442 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 1 selfloop transitions, 2 changer transitions 1/31 dead transitions. [2021-04-28 23:45:26,442 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 31 transitions, 87 flow [2021-04-28 23:45:26,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:45:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:45:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2021-04-28 23:45:26,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6731182795698925 [2021-04-28 23:45:26,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2021-04-28 23:45:26,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2021-04-28 23:45:26,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:45:26,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2021-04-28 23:45:26,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,452 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 81 flow. Second operand 3 states and 313 transitions. [2021-04-28 23:45:26,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 31 transitions, 87 flow [2021-04-28 23:45:26,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 31 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:45:26,454 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 84 flow [2021-04-28 23:45:26,454 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-04-28 23:45:26,455 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, -28 predicate places. [2021-04-28 23:45:26,455 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:45:26,455 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 84 flow [2021-04-28 23:45:26,456 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 84 flow [2021-04-28 23:45:26,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 84 flow [2021-04-28 23:45:26,463 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2021-04-28 23:45:26,463 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 23:45:26,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 40 events. 3/40 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 144 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 54. Up to 10 conditions per place. [2021-04-28 23:45:26,464 INFO L146 LiptonReduction]: Number of co-enabled transitions 410 [2021-04-28 23:45:26,476 INFO L158 LiptonReduction]: Checked pairs total: 133 [2021-04-28 23:45:26,476 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:45:26,476 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-28 23:45:26,478 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 84 flow [2021-04-28 23:45:26,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,479 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:45:26,479 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:45:26,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:45:26,480 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:45:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:45:26,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1663078896, now seen corresponding path program 1 times [2021-04-28 23:45:26,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:45:26,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621066756] [2021-04-28 23:45:26,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:45:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:45:26,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:26,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:45:26,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:26,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:45:26,563 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-28 23:45:26,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:45:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:45:26,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621066756] [2021-04-28 23:45:26,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:45:26,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:45:26,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037334495] [2021-04-28 23:45:26,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:45:26,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:45:26,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:45:26,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:45:26,580 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 155 [2021-04-28 23:45:26,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:45:26,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 155 [2021-04-28 23:45:26,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:45:26,623 INFO L129 PetriNetUnfolder]: 3/53 cut-off events. [2021-04-28 23:45:26,624 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-04-28 23:45:26,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 53 events. 3/53 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 219 event pairs, 1 based on Foata normal form. 6/33 useless extension candidates. Maximal degree in co-relation 84. Up to 10 conditions per place. [2021-04-28 23:45:26,625 INFO L132 encePairwiseOnDemand]: 150/155 looper letters, 2 selfloop transitions, 4 changer transitions 17/33 dead transitions. [2021-04-28 23:45:26,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 119 flow [2021-04-28 23:45:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:45:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:45:26,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 482 transitions. [2021-04-28 23:45:26,629 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6219354838709678 [2021-04-28 23:45:26,629 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 482 transitions. [2021-04-28 23:45:26,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 482 transitions. [2021-04-28 23:45:26,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:45:26,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 482 transitions. [2021-04-28 23:45:26,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,639 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,639 INFO L185 Difference]: Start difference. First operand has 38 places, 30 transitions, 84 flow. Second operand 5 states and 482 transitions. [2021-04-28 23:45:26,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 119 flow [2021-04-28 23:45:26,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 113 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:45:26,642 INFO L241 Difference]: Finished difference. Result has 43 places, 16 transitions, 67 flow [2021-04-28 23:45:26,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=43, PETRI_TRANSITIONS=16} [2021-04-28 23:45:26,642 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, -24 predicate places. [2021-04-28 23:45:26,642 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:45:26,643 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 16 transitions, 67 flow [2021-04-28 23:45:26,643 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 16 transitions, 67 flow [2021-04-28 23:45:26,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 16 transitions, 67 flow [2021-04-28 23:45:26,648 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-04-28 23:45:26,648 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-04-28 23:45:26,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 20 events. 0/20 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 26 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-04-28 23:45:26,649 INFO L146 LiptonReduction]: Number of co-enabled transitions 76 [2021-04-28 23:45:26,651 INFO L158 LiptonReduction]: Checked pairs total: 10 [2021-04-28 23:45:26,651 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:45:26,651 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-28 23:45:26,653 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 67 flow [2021-04-28 23:45:26,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,654 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:45:26,654 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:45:26,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:45:26,655 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:45:26,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:45:26,656 INFO L82 PathProgramCache]: Analyzing trace with hash 50643214, now seen corresponding path program 1 times [2021-04-28 23:45:26,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:45:26,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991658478] [2021-04-28 23:45:26,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:45:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:45:26,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:26,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:45:26,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:26,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:45:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:45:26,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991658478] [2021-04-28 23:45:26,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:45:26,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:45:26,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350936807] [2021-04-28 23:45:26,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:45:26,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:45:26,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:45:26,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:45:26,808 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 155 [2021-04-28 23:45:26,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:45:26,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 155 [2021-04-28 23:45:26,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:45:26,887 INFO L129 PetriNetUnfolder]: 36/105 cut-off events. [2021-04-28 23:45:26,887 INFO L130 PetriNetUnfolder]: For 90/94 co-relation queries the response was YES. [2021-04-28 23:45:26,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 105 events. 36/105 cut-off events. For 90/94 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 480 event pairs, 9 based on Foata normal form. 6/54 useless extension candidates. Maximal degree in co-relation 228. Up to 70 conditions per place. [2021-04-28 23:45:26,889 INFO L132 encePairwiseOnDemand]: 146/155 looper letters, 5 selfloop transitions, 4 changer transitions 19/35 dead transitions. [2021-04-28 23:45:26,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 161 flow [2021-04-28 23:45:26,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:45:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:45:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 465 transitions. [2021-04-28 23:45:26,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-04-28 23:45:26,893 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 465 transitions. [2021-04-28 23:45:26,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 465 transitions. [2021-04-28 23:45:26,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:45:26,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 465 transitions. [2021-04-28 23:45:26,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,900 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:26,901 INFO L185 Difference]: Start difference. First operand has 31 places, 16 transitions, 67 flow. Second operand 5 states and 465 transitions. [2021-04-28 23:45:26,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 161 flow [2021-04-28 23:45:26,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 146 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-04-28 23:45:26,904 INFO L241 Difference]: Finished difference. Result has 33 places, 16 transitions, 82 flow [2021-04-28 23:45:26,904 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=82, PETRI_PLACES=33, PETRI_TRANSITIONS=16} [2021-04-28 23:45:26,905 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, -34 predicate places. [2021-04-28 23:45:26,905 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:45:26,905 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 16 transitions, 82 flow [2021-04-28 23:45:26,905 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 16 transitions, 82 flow [2021-04-28 23:45:26,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 16 transitions, 82 flow [2021-04-28 23:45:26,914 INFO L129 PetriNetUnfolder]: 9/56 cut-off events. [2021-04-28 23:45:26,914 INFO L130 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2021-04-28 23:45:26,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 56 events. 9/56 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 238 event pairs, 9 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 154. Up to 43 conditions per place. [2021-04-28 23:45:26,915 INFO L146 LiptonReduction]: Number of co-enabled transitions 36 [2021-04-28 23:45:27,015 INFO L158 LiptonReduction]: Checked pairs total: 12 [2021-04-28 23:45:27,015 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-28 23:45:27,016 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-04-28 23:45:27,017 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 85 flow [2021-04-28 23:45:27,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:27,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:45:27,018 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:45:27,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:45:27,018 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:45:27,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:45:27,019 INFO L82 PathProgramCache]: Analyzing trace with hash 406932369, now seen corresponding path program 1 times [2021-04-28 23:45:27,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:45:27,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088642361] [2021-04-28 23:45:27,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:45:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:45:27,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:27,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:45:27,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:27,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:45:27,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:45:27,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:45:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:45:27,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088642361] [2021-04-28 23:45:27,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:45:27,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:45:27,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225203694] [2021-04-28 23:45:27,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:45:27,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:45:27,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:45:27,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:45:27,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 158 [2021-04-28 23:45:27,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 85 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:27,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:45:27,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 158 [2021-04-28 23:45:27,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:45:27,203 INFO L129 PetriNetUnfolder]: 0/47 cut-off events. [2021-04-28 23:45:27,203 INFO L130 PetriNetUnfolder]: For 53/59 co-relation queries the response was YES. [2021-04-28 23:45:27,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 47 events. 0/47 cut-off events. For 53/59 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 225 event pairs, 0 based on Foata normal form. 3/36 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2021-04-28 23:45:27,203 INFO L132 encePairwiseOnDemand]: 149/158 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2021-04-28 23:45:27,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 19 transitions, 119 flow [2021-04-28 23:45:27,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:45:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:45:27,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 535 transitions. [2021-04-28 23:45:27,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5643459915611815 [2021-04-28 23:45:27,208 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 535 transitions. [2021-04-28 23:45:27,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 535 transitions. [2021-04-28 23:45:27,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:45:27,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 535 transitions. [2021-04-28 23:45:27,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:27,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:27,214 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:27,214 INFO L185 Difference]: Start difference. First operand has 31 places, 16 transitions, 85 flow. Second operand 6 states and 535 transitions. [2021-04-28 23:45:27,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 19 transitions, 119 flow [2021-04-28 23:45:27,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 19 transitions, 92 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-04-28 23:45:27,216 INFO L241 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2021-04-28 23:45:27,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2021-04-28 23:45:27,217 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, -38 predicate places. [2021-04-28 23:45:27,217 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:45:27,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 0 transitions, 0 flow [2021-04-28 23:45:27,217 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 0 transitions, 0 flow [2021-04-28 23:45:27,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:45:27,218 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:45:27,218 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:45:27,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:45:27,218 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:45:27,218 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:45:27,219 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:45:27,219 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:45:27,220 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:45:27,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:45:27,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:45:27,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:45:27 BasicIcfg [2021-04-28 23:45:27,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:45:27,227 INFO L168 Benchmark]: Toolchain (without parser) took 15822.96 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 276.0 MB in the beginning and 304.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 107.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:45:27,228 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:45:27,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 951.31 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 274.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. [2021-04-28 23:45:27,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.49 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 272.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:45:27,230 INFO L168 Benchmark]: Boogie Preprocessor took 68.01 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 271.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:45:27,231 INFO L168 Benchmark]: RCFGBuilder took 710.94 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 249.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:45:27,232 INFO L168 Benchmark]: TraceAbstraction took 13933.04 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 248.2 MB in the beginning and 304.6 MB in the end (delta: -56.4 MB). Peak memory consumption was 79.9 MB. Max. memory is 16.0 GB. [2021-04-28 23:45:27,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 951.31 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 274.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 95.49 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 272.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 68.01 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 271.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 710.94 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 249.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 13933.04 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 248.2 MB in the beginning and 304.6 MB in the end (delta: -56.4 MB). Peak memory consumption was 79.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12035.8ms, 54 PlacesBefore, 67 PlacesAfterwards, 48 TransitionsBefore, 60 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 95 TotalNumberOfCompositions, 3396 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1297, positive: 1153, positive conditional: 1153, positive unconditional: 0, negative: 144, negative conditional: 144, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 500, positive: 462, positive conditional: 0, positive unconditional: 462, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 500, positive: 462, positive conditional: 0, positive unconditional: 462, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 500, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 45, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 290, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 243, negative conditional: 0, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1297, positive: 691, positive conditional: 691, positive unconditional: 0, negative: 106, negative conditional: 106, negative unconditional: 0, unknown: 500, unknown conditional: 500, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 490, Positive cache size: 452, Positive conditional cache size: 452, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.8ms, 68 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 495, Positive cache size: 454, Positive conditional cache size: 454, Positive unconditional cache size: 0, Negative cache size: 41, Negative conditional cache size: 41, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2ms, 39 PlacesBefore, 38 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 410 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 133 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 496, Positive cache size: 454, Positive conditional cache size: 454, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1ms, 43 PlacesBefore, 31 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 76 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 497, Positive cache size: 455, Positive conditional cache size: 455, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.0ms, 33 PlacesBefore, 31 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 509, Positive cache size: 467, Positive conditional cache size: 467, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 29 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 509, Positive cache size: 467, Positive conditional cache size: 467, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 13752.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 532.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12164.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 26 SDtfs, 18 SDslu, 9 SDs, 0 SdLazy, 84 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 133.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 87.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.3ms SsaConstructionTime, 154.2ms SatisfiabilityAnalysisTime, 430.0ms InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...