/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/safe000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:17:55,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:17:55,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:17:56,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:17:56,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:17:56,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:17:56,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:17:56,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:17:56,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:17:56,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:17:56,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:17:56,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:17:56,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:17:56,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:17:56,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:17:56,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:17:56,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:17:56,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:17:56,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:17:56,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:17:56,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:17:56,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:17:56,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:17:56,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:17:56,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:17:56,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:17:56,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:17:56,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:17:56,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:17:56,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:17:56,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:17:56,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:17:56,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:17:56,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:17:56,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:17:56,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:17:56,150 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 23:17:56,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:17:56,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:17:56,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:17:56,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:17:56,209 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:17:56,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:17:56,210 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:17:56,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:17:56,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:17:56,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:17:56,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:17:56,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:17:56,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:17:56,212 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:17:56,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:17:56,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:17:56,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:17:56,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:17:56,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:17:56,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:17:56,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:17:56,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:17:56,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:17:56,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:17:56,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:17:56,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:17:56,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:17:56,216 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:17:56,216 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:17:56,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:17:56,216 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:17:56,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:17:56,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:17:56,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:17:56,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:17:56,667 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:17:56,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-04-28 23:17:56,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e64d58fc/846496dd8746415f8f4c1941f0ef459c/FLAGef1f6dc9f [2021-04-28 23:17:57,432 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:17:57,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2021-04-28 23:17:57,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e64d58fc/846496dd8746415f8f4c1941f0ef459c/FLAGef1f6dc9f [2021-04-28 23:17:57,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e64d58fc/846496dd8746415f8f4c1941f0ef459c [2021-04-28 23:17:57,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:17:57,754 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:17:57,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:17:57,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:17:57,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:17:57,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:17:57" (1/1) ... [2021-04-28 23:17:57,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4db5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:57, skipping insertion in model container [2021-04-28 23:17:57,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:17:57" (1/1) ... [2021-04-28 23:17:57,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:17:57,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:17:58,020 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/safe000_pso.opt.i[949,962] [2021-04-28 23:17:58,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:17:58,294 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:17:58,311 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/safe000_pso.opt.i[949,962] [2021-04-28 23:17:58,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:17:58,484 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:17:58,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58 WrapperNode [2021-04-28 23:17:58,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:17:58,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:17:58,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:17:58,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:17:58,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:17:58,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:17:58,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:17:58,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:17:58,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (1/1) ... [2021-04-28 23:17:58,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:17:58,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:17:58,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:17:58,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:17:58,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (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 23:17:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:17:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:17:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:17:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:17:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:17:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:17:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:17:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:17:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:17:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:17:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:17:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:17:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:17:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:17:58,691 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 23:17:59,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:17:59,190 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:17:59,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:17:59 BoogieIcfgContainer [2021-04-28 23:17:59,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:17:59,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:17:59,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:17:59,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:17:59,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:17:57" (1/3) ... [2021-04-28 23:17:59,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7243127b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:17:59, skipping insertion in model container [2021-04-28 23:17:59,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:17:58" (2/3) ... [2021-04-28 23:17:59,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7243127b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:17:59, skipping insertion in model container [2021-04-28 23:17:59,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:17:59" (3/3) ... [2021-04-28 23:17:59,202 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2021-04-28 23:17:59,212 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:17:59,217 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:17:59,219 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:17:59,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,256 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,256 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,256 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,257 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,257 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,257 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,259 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,259 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,259 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,260 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,260 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,260 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,262 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,262 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,262 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,262 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,263 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,263 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,264 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,267 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,267 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,273 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,273 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,276 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,277 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,277 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:17:59,279 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:17:59,304 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:17:59,331 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:17:59,332 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:17:59,332 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:17:59,332 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:17:59,332 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:17:59,332 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:17:59,332 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:17:59,332 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:17:59,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:17:59,400 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-04-28 23:17:59,400 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:17:59,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:17:59,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-04-28 23:17:59,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-04-28 23:17:59,412 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:17:59,429 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:17:59,434 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-04-28 23:17:59,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-04-28 23:17:59,464 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-04-28 23:17:59,464 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:17:59,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:17:59,470 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:18:03,080 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:18:03,257 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:18:03,420 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:18:03,735 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:18:03,940 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:18:04,152 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:18:04,352 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:18:04,556 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:18:04,749 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:18:05,053 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:18:05,204 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:18:05,356 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:18:06,366 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-28 23:18:06,660 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-04-28 23:18:06,965 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-28 23:18:07,076 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:18:07,315 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-04-28 23:18:07,424 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:18:08,034 INFO L158 LiptonReduction]: Checked pairs total: 5648 [2021-04-28 23:18:08,034 INFO L160 LiptonReduction]: Total number of compositions: 84 [2021-04-28 23:18:08,038 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8626 [2021-04-28 23:18:08,060 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-04-28 23:18:08,060 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:18:08,060 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:18:08,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:18:08,061 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:18:08,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:18:08,067 INFO L82 PathProgramCache]: Analyzing trace with hash 351986949, now seen corresponding path program 1 times [2021-04-28 23:18:08,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:18:08,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668740576] [2021-04-28 23:18:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:18:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:18:08,416 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:18:08,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:18:08,430 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 23:18:08,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668740576] [2021-04-28 23:18:08,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:18:08,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:18:08,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802424895] [2021-04-28 23:18:08,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:18:08,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:18:08,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:18:08,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:18:08,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:18:08,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 65 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 23:18:08,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:18:08,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:18:08,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:18:08,635 INFO L129 PetriNetUnfolder]: 247/675 cut-off events. [2021-04-28 23:18:08,636 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:18:08,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 675 events. 247/675 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5168 event pairs, 86 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 1075. Up to 271 conditions per place. [2021-04-28 23:18:08,649 INFO L132 encePairwiseOnDemand]: 141/159 looper letters, 6 selfloop transitions, 6 changer transitions 30/74 dead transitions. [2021-04-28 23:18:08,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 219 flow [2021-04-28 23:18:08,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:18:08,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:18:08,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2021-04-28 23:18:08,676 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7358490566037735 [2021-04-28 23:18:08,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2021-04-28 23:18:08,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2021-04-28 23:18:08,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:18:08,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2021-04-28 23:18:08,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 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 23:18:08,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 23:18:08,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 23:18:08,712 INFO L185 Difference]: Start difference. First operand has 75 places, 65 transitions, 139 flow. Second operand 3 states and 351 transitions. [2021-04-28 23:18:08,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 219 flow [2021-04-28 23:18:08,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 74 transitions, 216 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:18:08,721 INFO L241 Difference]: Finished difference. Result has 76 places, 44 transitions, 130 flow [2021-04-28 23:18:08,724 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=76, PETRI_TRANSITIONS=44} [2021-04-28 23:18:08,725 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, 1 predicate places. [2021-04-28 23:18:08,725 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:18:08,725 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 44 transitions, 130 flow [2021-04-28 23:18:08,726 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 44 transitions, 130 flow [2021-04-28 23:18:08,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 130 flow [2021-04-28 23:18:08,768 INFO L129 PetriNetUnfolder]: 47/212 cut-off events. [2021-04-28 23:18:08,768 INFO L130 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2021-04-28 23:18:08,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 212 events. 47/212 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1304 event pairs, 17 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 353. Up to 66 conditions per place. [2021-04-28 23:18:08,779 INFO L146 LiptonReduction]: Number of co-enabled transitions 988 [2021-04-28 23:18:08,798 INFO L158 LiptonReduction]: Checked pairs total: 233 [2021-04-28 23:18:08,799 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:18:08,799 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-04-28 23:18:08,802 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 130 flow [2021-04-28 23:18:08,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 23:18:08,803 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:18:08,803 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:18:08,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:18:08,803 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:18:08,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:18:08,806 INFO L82 PathProgramCache]: Analyzing trace with hash 268622995, now seen corresponding path program 1 times [2021-04-28 23:18:08,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:18:08,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903556566] [2021-04-28 23:18:08,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:18:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:18:08,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:08,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:08,937 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:18:08,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:18:08,955 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 23:18:08,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903556566] [2021-04-28 23:18:08,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:18:08,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:18:08,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323478113] [2021-04-28 23:18:08,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:18:08,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:18:08,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:18:08,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:18:08,961 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:18:08,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 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 23:18:08,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:18:08,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:18:08,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:18:09,017 INFO L129 PetriNetUnfolder]: 39/172 cut-off events. [2021-04-28 23:18:09,018 INFO L130 PetriNetUnfolder]: For 32/85 co-relation queries the response was YES. [2021-04-28 23:18:09,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 172 events. 39/172 cut-off events. For 32/85 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 958 event pairs, 4 based on Foata normal form. 7/121 useless extension candidates. Maximal degree in co-relation 378. Up to 54 conditions per place. [2021-04-28 23:18:09,021 INFO L132 encePairwiseOnDemand]: 152/159 looper letters, 11 selfloop transitions, 7 changer transitions 0/50 dead transitions. [2021-04-28 23:18:09,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 50 transitions, 196 flow [2021-04-28 23:18:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:18:09,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:18:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2021-04-28 23:18:09,024 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.690251572327044 [2021-04-28 23:18:09,024 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 439 transitions. [2021-04-28 23:18:09,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 439 transitions. [2021-04-28 23:18:09,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:18:09,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 439 transitions. [2021-04-28 23:18:09,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.75) internal successors, (439), 4 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 23:18:09,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,031 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,032 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 130 flow. Second operand 4 states and 439 transitions. [2021-04-28 23:18:09,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 50 transitions, 196 flow [2021-04-28 23:18:09,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:18:09,036 INFO L241 Difference]: Finished difference. Result has 54 places, 47 transitions, 166 flow [2021-04-28 23:18:09,036 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2021-04-28 23:18:09,037 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -21 predicate places. [2021-04-28 23:18:09,037 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:18:09,038 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 47 transitions, 166 flow [2021-04-28 23:18:09,038 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 47 transitions, 166 flow [2021-04-28 23:18:09,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 47 transitions, 166 flow [2021-04-28 23:18:09,063 INFO L129 PetriNetUnfolder]: 39/211 cut-off events. [2021-04-28 23:18:09,063 INFO L130 PetriNetUnfolder]: For 73/77 co-relation queries the response was YES. [2021-04-28 23:18:09,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 211 events. 39/211 cut-off events. For 73/77 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1356 event pairs, 16 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 391. Up to 54 conditions per place. [2021-04-28 23:18:09,070 INFO L146 LiptonReduction]: Number of co-enabled transitions 1086 [2021-04-28 23:18:09,083 INFO L158 LiptonReduction]: Checked pairs total: 248 [2021-04-28 23:18:09,083 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:18:09,083 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-04-28 23:18:09,085 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 166 flow [2021-04-28 23:18:09,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 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 23:18:09,086 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:18:09,086 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:18:09,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:18:09,086 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:18:09,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:18:09,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1973307774, now seen corresponding path program 1 times [2021-04-28 23:18:09,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:18:09,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266100906] [2021-04-28 23:18:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:18:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:18:09,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:09,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:09,136 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:18:09,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:18:09,149 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 23:18:09,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266100906] [2021-04-28 23:18:09,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:18:09,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:18:09,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602914176] [2021-04-28 23:18:09,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:18:09,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:18:09,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:18:09,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:18:09,157 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 159 [2021-04-28 23:18:09,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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 23:18:09,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:18:09,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 159 [2021-04-28 23:18:09,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:18:09,243 INFO L129 PetriNetUnfolder]: 72/256 cut-off events. [2021-04-28 23:18:09,243 INFO L130 PetriNetUnfolder]: For 203/353 co-relation queries the response was YES. [2021-04-28 23:18:09,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 256 events. 72/256 cut-off events. For 203/353 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1545 event pairs, 1 based on Foata normal form. 14/192 useless extension candidates. Maximal degree in co-relation 652. Up to 67 conditions per place. [2021-04-28 23:18:09,248 INFO L132 encePairwiseOnDemand]: 151/159 looper letters, 15 selfloop transitions, 20 changer transitions 0/66 dead transitions. [2021-04-28 23:18:09,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 66 transitions, 352 flow [2021-04-28 23:18:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:18:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:18:09,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2021-04-28 23:18:09,251 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6855345911949685 [2021-04-28 23:18:09,251 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2021-04-28 23:18:09,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2021-04-28 23:18:09,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:18:09,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2021-04-28 23:18:09,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 23:18:09,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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 23:18:09,258 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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 23:18:09,259 INFO L185 Difference]: Start difference. First operand has 54 places, 47 transitions, 166 flow. Second operand 5 states and 545 transitions. [2021-04-28 23:18:09,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 66 transitions, 352 flow [2021-04-28 23:18:09,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 66 transitions, 347 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:18:09,264 INFO L241 Difference]: Finished difference. Result has 61 places, 60 transitions, 345 flow [2021-04-28 23:18:09,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=345, PETRI_PLACES=61, PETRI_TRANSITIONS=60} [2021-04-28 23:18:09,265 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -14 predicate places. [2021-04-28 23:18:09,265 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:18:09,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 60 transitions, 345 flow [2021-04-28 23:18:09,266 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 60 transitions, 345 flow [2021-04-28 23:18:09,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 60 transitions, 345 flow [2021-04-28 23:18:09,337 INFO L129 PetriNetUnfolder]: 57/252 cut-off events. [2021-04-28 23:18:09,337 INFO L130 PetriNetUnfolder]: For 330/365 co-relation queries the response was YES. [2021-04-28 23:18:09,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 252 events. 57/252 cut-off events. For 330/365 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1642 event pairs, 4 based on Foata normal form. 8/174 useless extension candidates. Maximal degree in co-relation 699. Up to 58 conditions per place. [2021-04-28 23:18:09,346 INFO L146 LiptonReduction]: Number of co-enabled transitions 1502 [2021-04-28 23:18:09,355 INFO L158 LiptonReduction]: Checked pairs total: 39 [2021-04-28 23:18:09,356 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:18:09,356 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-04-28 23:18:09,358 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 60 transitions, 345 flow [2021-04-28 23:18:09,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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 23:18:09,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:18:09,359 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:18:09,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:18:09,359 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:18:09,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:18:09,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1043000124, now seen corresponding path program 1 times [2021-04-28 23:18:09,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:18:09,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681627357] [2021-04-28 23:18:09,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:18:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:18:09,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:09,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:09,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:09,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:09,408 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 23:18:09,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681627357] [2021-04-28 23:18:09,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:18:09,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:18:09,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422764675] [2021-04-28 23:18:09,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:18:09,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:18:09,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:18:09,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:18:09,412 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 159 [2021-04-28 23:18:09,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 345 flow. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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 23:18:09,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:18:09,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 159 [2021-04-28 23:18:09,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:18:09,464 INFO L129 PetriNetUnfolder]: 42/225 cut-off events. [2021-04-28 23:18:09,464 INFO L130 PetriNetUnfolder]: For 467/611 co-relation queries the response was YES. [2021-04-28 23:18:09,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 225 events. 42/225 cut-off events. For 467/611 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1492 event pairs, 6 based on Foata normal form. 18/162 useless extension candidates. Maximal degree in co-relation 641. Up to 52 conditions per place. [2021-04-28 23:18:09,468 INFO L132 encePairwiseOnDemand]: 155/159 looper letters, 1 selfloop transitions, 5 changer transitions 14/60 dead transitions. [2021-04-28 23:18:09,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 60 transitions, 361 flow [2021-04-28 23:18:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:18:09,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:18:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2021-04-28 23:18:09,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7468553459119497 [2021-04-28 23:18:09,471 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 475 transitions. [2021-04-28 23:18:09,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 475 transitions. [2021-04-28 23:18:09,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:18:09,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 475 transitions. [2021-04-28 23:18:09,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 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 23:18:09,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,477 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,477 INFO L185 Difference]: Start difference. First operand has 61 places, 60 transitions, 345 flow. Second operand 4 states and 475 transitions. [2021-04-28 23:18:09,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 60 transitions, 361 flow [2021-04-28 23:18:09,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 60 transitions, 361 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:18:09,484 INFO L241 Difference]: Finished difference. Result has 66 places, 46 transitions, 244 flow [2021-04-28 23:18:09,485 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=66, PETRI_TRANSITIONS=46} [2021-04-28 23:18:09,485 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -9 predicate places. [2021-04-28 23:18:09,485 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:18:09,486 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 46 transitions, 244 flow [2021-04-28 23:18:09,486 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 46 transitions, 244 flow [2021-04-28 23:18:09,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 46 transitions, 244 flow [2021-04-28 23:18:09,503 INFO L129 PetriNetUnfolder]: 14/108 cut-off events. [2021-04-28 23:18:09,504 INFO L130 PetriNetUnfolder]: For 140/140 co-relation queries the response was YES. [2021-04-28 23:18:09,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 108 events. 14/108 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 528 event pairs, 5 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 281. Up to 23 conditions per place. [2021-04-28 23:18:09,508 INFO L146 LiptonReduction]: Number of co-enabled transitions 938 [2021-04-28 23:18:09,516 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-28 23:18:09,516 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:18:09,516 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-04-28 23:18:09,518 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 244 flow [2021-04-28 23:18:09,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 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 23:18:09,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:18:09,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:18:09,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:18:09,519 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:18:09,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:18:09,520 INFO L82 PathProgramCache]: Analyzing trace with hash -768506952, now seen corresponding path program 1 times [2021-04-28 23:18:09,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:18:09,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541842273] [2021-04-28 23:18:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:18:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:18:09,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:09,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:09,599 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:18:09,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:18:09,619 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 23:18:09,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541842273] [2021-04-28 23:18:09,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:18:09,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:18:09,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004669783] [2021-04-28 23:18:09,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:18:09,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:18:09,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:18:09,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:18:09,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:18:09,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 23:18:09,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:18:09,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:18:09,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:18:09,664 INFO L129 PetriNetUnfolder]: 9/83 cut-off events. [2021-04-28 23:18:09,664 INFO L130 PetriNetUnfolder]: For 153/165 co-relation queries the response was YES. [2021-04-28 23:18:09,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 83 events. 9/83 cut-off events. For 153/165 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 367 event pairs, 0 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 241. Up to 18 conditions per place. [2021-04-28 23:18:09,666 INFO L132 encePairwiseOnDemand]: 155/159 looper letters, 11 selfloop transitions, 9 changer transitions 1/50 dead transitions. [2021-04-28 23:18:09,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 50 transitions, 324 flow [2021-04-28 23:18:09,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:18:09,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:18:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions. [2021-04-28 23:18:09,668 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6871069182389937 [2021-04-28 23:18:09,668 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 437 transitions. [2021-04-28 23:18:09,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 437 transitions. [2021-04-28 23:18:09,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:18:09,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 437 transitions. [2021-04-28 23:18:09,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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 23:18:09,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,674 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,674 INFO L185 Difference]: Start difference. First operand has 63 places, 46 transitions, 244 flow. Second operand 4 states and 437 transitions. [2021-04-28 23:18:09,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 50 transitions, 324 flow [2021-04-28 23:18:09,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 50 transitions, 257 flow, removed 12 selfloop flow, removed 8 redundant places. [2021-04-28 23:18:09,679 INFO L241 Difference]: Finished difference. Result has 59 places, 47 transitions, 230 flow [2021-04-28 23:18:09,679 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2021-04-28 23:18:09,679 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -16 predicate places. [2021-04-28 23:18:09,680 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:18:09,680 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 47 transitions, 230 flow [2021-04-28 23:18:09,680 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 47 transitions, 230 flow [2021-04-28 23:18:09,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 47 transitions, 230 flow [2021-04-28 23:18:09,692 INFO L129 PetriNetUnfolder]: 9/79 cut-off events. [2021-04-28 23:18:09,692 INFO L130 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2021-04-28 23:18:09,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 79 events. 9/79 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 329 event pairs, 1 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 179. Up to 17 conditions per place. [2021-04-28 23:18:09,695 INFO L146 LiptonReduction]: Number of co-enabled transitions 950 [2021-04-28 23:18:09,702 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-28 23:18:09,703 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:18:09,703 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-28 23:18:09,704 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 230 flow [2021-04-28 23:18:09,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 23:18:09,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:18:09,705 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:18:09,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:18:09,705 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:18:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:18:09,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1208602339, now seen corresponding path program 1 times [2021-04-28 23:18:09,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:18:09,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260167839] [2021-04-28 23:18:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:18:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:18:09,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:09,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:09,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:09,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:09,752 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 23:18:09,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260167839] [2021-04-28 23:18:09,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:18:09,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:18:09,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463917365] [2021-04-28 23:18:09,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:18:09,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:18:09,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:18:09,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:18:09,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 159 [2021-04-28 23:18:09,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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 23:18:09,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:18:09,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 159 [2021-04-28 23:18:09,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:18:09,798 INFO L129 PetriNetUnfolder]: 8/87 cut-off events. [2021-04-28 23:18:09,798 INFO L130 PetriNetUnfolder]: For 83/86 co-relation queries the response was YES. [2021-04-28 23:18:09,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 87 events. 8/87 cut-off events. For 83/86 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 380 event pairs, 0 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 216. Up to 17 conditions per place. [2021-04-28 23:18:09,799 INFO L132 encePairwiseOnDemand]: 154/159 looper letters, 3 selfloop transitions, 3 changer transitions 26/49 dead transitions. [2021-04-28 23:18:09,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 49 transitions, 282 flow [2021-04-28 23:18:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:18:09,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:18:09,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2021-04-28 23:18:09,804 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7232704402515723 [2021-04-28 23:18:09,804 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 460 transitions. [2021-04-28 23:18:09,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 460 transitions. [2021-04-28 23:18:09,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:18:09,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 460 transitions. [2021-04-28 23:18:09,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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 23:18:09,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,809 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,809 INFO L185 Difference]: Start difference. First operand has 58 places, 47 transitions, 230 flow. Second operand 4 states and 460 transitions. [2021-04-28 23:18:09,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 49 transitions, 282 flow [2021-04-28 23:18:09,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 49 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:18:09,812 INFO L241 Difference]: Finished difference. Result has 62 places, 23 transitions, 108 flow [2021-04-28 23:18:09,813 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=62, PETRI_TRANSITIONS=23} [2021-04-28 23:18:09,813 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -13 predicate places. [2021-04-28 23:18:09,813 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:18:09,813 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 23 transitions, 108 flow [2021-04-28 23:18:09,814 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 23 transitions, 108 flow [2021-04-28 23:18:09,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 23 transitions, 108 flow [2021-04-28 23:18:09,818 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-28 23:18:09,819 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-04-28 23:18:09,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 27 events. 0/27 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-04-28 23:18:09,819 INFO L146 LiptonReduction]: Number of co-enabled transitions 132 [2021-04-28 23:18:09,822 INFO L158 LiptonReduction]: Checked pairs total: 15 [2021-04-28 23:18:09,822 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:18:09,822 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-28 23:18:09,824 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 23 transitions, 108 flow [2021-04-28 23:18:09,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 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 23:18:09,825 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:18:09,825 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:18:09,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:18:09,825 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:18:09,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:18:09,826 INFO L82 PathProgramCache]: Analyzing trace with hash 498259969, now seen corresponding path program 2 times [2021-04-28 23:18:09,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:18:09,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982102831] [2021-04-28 23:18:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:18:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:18:09,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:09,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:09,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:18:09,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:18:09,873 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:18:09,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:18:09,885 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 23:18:09,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982102831] [2021-04-28 23:18:09,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:18:09,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:18:09,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124166019] [2021-04-28 23:18:09,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:18:09,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:18:09,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:18:09,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:18:09,889 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 159 [2021-04-28 23:18:09,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 23 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:18:09,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:18:09,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 159 [2021-04-28 23:18:09,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:18:09,916 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-28 23:18:09,916 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-04-28 23:18:09,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 22 events. 0/22 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 23:18:09,917 INFO L132 encePairwiseOnDemand]: 156/159 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-04-28 23:18:09,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 22 transitions, 110 flow [2021-04-28 23:18:09,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:18:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:18:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2021-04-28 23:18:09,919 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6776729559748428 [2021-04-28 23:18:09,920 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 431 transitions. [2021-04-28 23:18:09,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 431 transitions. [2021-04-28 23:18:09,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:18:09,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 431 transitions. [2021-04-28 23:18:09,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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 23:18:09,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,924 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 23:18:09,924 INFO L185 Difference]: Start difference. First operand has 50 places, 23 transitions, 108 flow. Second operand 4 states and 431 transitions. [2021-04-28 23:18:09,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 22 transitions, 110 flow [2021-04-28 23:18:09,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 65 flow, removed 3 selfloop flow, removed 17 redundant places. [2021-04-28 23:18:09,926 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2021-04-28 23:18:09,926 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2021-04-28 23:18:09,926 INFO L343 CegarLoopForPetriNet]: 75 programPoint places, -40 predicate places. [2021-04-28 23:18:09,926 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:18:09,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 0 transitions, 0 flow [2021-04-28 23:18:09,927 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 0 transitions, 0 flow [2021-04-28 23:18:09,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:18:09,927 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:18:09,928 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:18:09,928 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 23:18:09,928 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:18:09,928 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:18:09,928 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:18:09,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:18:09,929 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:18:09,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 107.2) internal successors, (536), 5 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:18:09,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:18:09,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:18:09 BasicIcfg [2021-04-28 23:18:09,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:18:09,936 INFO L168 Benchmark]: Toolchain (without parser) took 12230.13 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 276.8 MB in the beginning and 320.8 MB in the end (delta: -44.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:18:09,937 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.6 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:18:09,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.39 ms. Allocated memory is still 302.0 MB. Free memory was 273.9 MB in the beginning and 243.0 MB in the end (delta: 30.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-04-28 23:18:09,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.88 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 283.3 MB in the end (delta: -40.3 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-04-28 23:18:09,938 INFO L168 Benchmark]: Boogie Preprocessor took 28.26 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 282.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:18:09,939 INFO L168 Benchmark]: RCFGBuilder took 617.46 ms. Allocated memory is still 302.0 MB. Free memory was 282.3 MB in the beginning and 259.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:18:09,939 INFO L168 Benchmark]: TraceAbstraction took 10740.56 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 258.2 MB in the beginning and 320.8 MB in the end (delta: -62.7 MB). Peak memory consumption was 71.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:18:09,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.6 MB in the end (delta: 153.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 731.39 ms. Allocated memory is still 302.0 MB. Free memory was 273.9 MB in the beginning and 243.0 MB in the end (delta: 30.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.88 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 283.3 MB in the end (delta: -40.3 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.26 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 282.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 617.46 ms. Allocated memory is still 302.0 MB. Free memory was 282.3 MB in the beginning and 259.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 10740.56 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 258.2 MB in the beginning and 320.8 MB in the end (delta: -62.7 MB). Peak memory consumption was 71.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8600.2ms, 69 PlacesBefore, 75 PlacesAfterwards, 60 TransitionsBefore, 65 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 5648 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1621, positive: 1455, positive conditional: 1455, positive unconditional: 0, negative: 166, negative conditional: 166, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 857, positive: 806, positive conditional: 0, positive unconditional: 806, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 857, positive: 806, positive conditional: 0, positive unconditional: 806, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 857, positive: 794, positive conditional: 0, positive unconditional: 794, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 337, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 271, negative conditional: 0, negative unconditional: 271, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1621, positive: 649, positive conditional: 649, positive unconditional: 0, negative: 115, negative conditional: 115, negative unconditional: 0, unknown: 857, unknown conditional: 857, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 836, Positive cache size: 785, Positive conditional cache size: 785, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.2ms, 76 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 233 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 28, positive conditional: 28, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 35, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 847, Positive cache size: 795, Positive conditional cache size: 795, Positive unconditional cache size: 0, Negative cache size: 52, Negative conditional cache size: 52, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.0ms, 54 PlacesBefore, 54 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 1086 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 248 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 97, positive: 90, positive conditional: 90, 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: 23, positive: 22, positive conditional: 1, positive unconditional: 21, 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: 23, positive: 22, positive conditional: 1, positive unconditional: 21, 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: 23, positive: 22, positive conditional: 0, positive unconditional: 22, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 97, positive: 68, positive conditional: 68, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 870, Positive cache size: 817, Positive conditional cache size: 817, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.8ms, 61 PlacesBefore, 61 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 1502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 39 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: 0, positive unconditional: 1, 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: 0, positive unconditional: 1, 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): 871, Positive cache size: 818, Positive conditional cache size: 818, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.2ms, 66 PlacesBefore, 63 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 938 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 871, Positive cache size: 818, Positive conditional cache size: 818, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.4ms, 59 PlacesBefore, 58 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 950 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 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): 872, Positive cache size: 819, Positive conditional cache size: 819, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7ms, 62 PlacesBefore, 50 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 872, Positive cache size: 819, Positive conditional cache size: 819, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 35 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): 872, Positive cache size: 819, Positive conditional cache size: 819, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, 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 4 procedures, 74 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: 10605.7ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 690.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8714.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 57 SDtfs, 27 SDslu, 15 SDs, 0 SdLazy, 68 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 115.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 131.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=3, InterpolantAutomatonStates: 28, 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: 20.0ms SsaConstructionTime, 146.9ms SatisfiabilityAnalysisTime, 508.9ms InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...