/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/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:35:46,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:35:46,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:35:46,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:35:46,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:35:46,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:35:46,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:35:46,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:35:46,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:35:46,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:35:46,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:35:46,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:35:46,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:35:46,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:35:46,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:35:46,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:35:46,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:35:46,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:35:46,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:35:46,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:35:46,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:35:46,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:35:46,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:35:46,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:35:46,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:35:46,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:35:46,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:35:46,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:35:46,884 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 [2021-03-26 00:35:46,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:35:46,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:35:46,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:35:46,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:35:46,916 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:35:46,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:35:46,916 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:35:46,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:35:46,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:35:46,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:35:46,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:35:46,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:35:46,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:35:46,918 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:35:46,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:35:46,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:35:46,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:35:46,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:35:46,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:35:46,918 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:35:46,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:35:46,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:35:46,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:35:46,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:35:46,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:35:46,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:35:46,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:35:46,919 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:35:46,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:35:46,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:35:46,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:35:47,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:35:47,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:35:47,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:35:47,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:35:47,257 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:35:47,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2021-03-26 00:35:47,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d01739cf/f682ab27c4c04436bf3990c4b1f7ddf0/FLAG99323c876 [2021-03-26 00:35:47,779 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:35:47,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2021-03-26 00:35:47,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d01739cf/f682ab27c4c04436bf3990c4b1f7ddf0/FLAG99323c876 [2021-03-26 00:35:47,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d01739cf/f682ab27c4c04436bf3990c4b1f7ddf0 [2021-03-26 00:35:47,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:35:47,804 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:35:47,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:35:47,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:35:47,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:35:47,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:35:47" (1/1) ... [2021-03-26 00:35:47,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec5f752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:47, skipping insertion in model container [2021-03-26 00:35:47,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:35:47" (1/1) ... [2021-03-26 00:35:47,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:35:47,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:35:48,070 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/safe004_tso.opt.i[949,962] [2021-03-26 00:35:48,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:35:48,199 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:35:48,206 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/safe004_tso.opt.i[949,962] [2021-03-26 00:35:48,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:35:48,273 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:35:48,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48 WrapperNode [2021-03-26 00:35:48,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:35:48,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:35:48,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:35:48,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:35:48,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:35:48,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:35:48,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:35:48,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:35:48,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (1/1) ... [2021-03-26 00:35:48,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:35:48,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:35:48,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:35:48,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:35:48,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (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 [2021-03-26 00:35:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:35:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:35:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:35:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:35:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:35:48,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:35:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:35:48,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:35:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:35:48,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:35:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:35:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:35:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:35:48,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:35:48,399 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:35:48,741 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:35:48,741 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:35:48,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:35:48 BoogieIcfgContainer [2021-03-26 00:35:48,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:35:48,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:35:48,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:35:48,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:35:48,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:35:47" (1/3) ... [2021-03-26 00:35:48,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7888e45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:35:48, skipping insertion in model container [2021-03-26 00:35:48,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:35:48" (2/3) ... [2021-03-26 00:35:48,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7888e45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:35:48, skipping insertion in model container [2021-03-26 00:35:48,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:35:48" (3/3) ... [2021-03-26 00:35:48,747 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2021-03-26 00:35:48,751 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:35:48,757 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:35:48,758 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:35:48,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,787 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,787 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,788 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,792 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,792 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:35:48,793 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:35:48,805 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:35:48,819 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:35:48,819 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:35:48,819 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:35:48,819 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:35:48,819 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:35:48,819 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:35:48,819 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:35:48,819 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:35:48,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:35:48,847 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-26 00:35:48,848 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:35:48,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:35:48,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:35:48,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-26 00:35:48,854 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:35:48,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:35:48,864 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:35:48,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-26 00:35:48,875 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-26 00:35:48,875 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:35:48,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 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. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:35:48,877 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:35:50,318 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-26 00:35:50,318 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-26 00:35:50,322 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1469 [2021-03-26 00:35:50,334 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 00:35:50,334 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:35:50,334 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:35:50,335 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:35:50,335 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:35:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:35:50,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1399899973, now seen corresponding path program 1 times [2021-03-26 00:35:50,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:35:50,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902644638] [2021-03-26 00:35:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:35:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:35:50,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:50,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:35:50,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:50,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:50,575 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:35:50,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:35:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:35:50,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902644638] [2021-03-26 00:35:50,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:35:50,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:35:50,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551520045] [2021-03-26 00:35:50,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:35:50,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:35:50,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:35:50,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:35:50,612 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 111 [2021-03-26 00:35:50,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2021-03-26 00:35:50,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:35:50,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 111 [2021-03-26 00:35:50,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:35:50,668 INFO L129 PetriNetUnfolder]: 38/114 cut-off events. [2021-03-26 00:35:50,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:35:50,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 114 events. 38/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 433 event pairs, 16 based on Foata normal form. 11/118 useless extension candidates. Maximal degree in co-relation 192. Up to 35 conditions per place. [2021-03-26 00:35:50,671 INFO L132 encePairwiseOnDemand]: 104/111 looper letters, 11 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2021-03-26 00:35:50,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 30 transitions, 103 flow [2021-03-26 00:35:50,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:35:50,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:35:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2021-03-26 00:35:50,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8175675675675675 [2021-03-26 00:35:50,684 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 363 transitions. [2021-03-26 00:35:50,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 363 transitions. [2021-03-26 00:35:50,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:35:50,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 363 transitions. [2021-03-26 00:35:50,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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) [2021-03-26 00:35:50,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 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) [2021-03-26 00:35:50,706 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 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) [2021-03-26 00:35:50,708 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 4 states and 363 transitions. [2021-03-26 00:35:50,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 30 transitions, 103 flow [2021-03-26 00:35:50,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:35:50,711 INFO L241 Difference]: Finished difference. Result has 35 places, 26 transitions, 94 flow [2021-03-26 00:35:50,712 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=35, PETRI_TRANSITIONS=26} [2021-03-26 00:35:50,713 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-26 00:35:50,713 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:35:50,713 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 26 transitions, 94 flow [2021-03-26 00:35:50,715 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 26 transitions, 94 flow [2021-03-26 00:35:50,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 26 transitions, 94 flow [2021-03-26 00:35:50,726 INFO L129 PetriNetUnfolder]: 17/79 cut-off events. [2021-03-26 00:35:50,726 INFO L130 PetriNetUnfolder]: For 23/27 co-relation queries the response was YES. [2021-03-26 00:35:50,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 79 events. 17/79 cut-off events. For 23/27 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 270 event pairs, 5 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 157. Up to 24 conditions per place. [2021-03-26 00:35:50,727 INFO L142 LiptonReduction]: Number of co-enabled transitions 182 [2021-03-26 00:35:51,157 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:35:51,354 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:35:51,425 INFO L154 LiptonReduction]: Checked pairs total: 186 [2021-03-26 00:35:51,425 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 00:35:51,425 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 712 [2021-03-26 00:35:51,426 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 84 flow [2021-03-26 00:35:51,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2021-03-26 00:35:51,427 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:35:51,427 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:35:51,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:35:51,427 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:35:51,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:35:51,428 INFO L82 PathProgramCache]: Analyzing trace with hash -288169063, now seen corresponding path program 1 times [2021-03-26 00:35:51,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:35:51,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558216559] [2021-03-26 00:35:51,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:35:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:35:51,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:35:51,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,467 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:35:51,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:35:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:35:51,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558216559] [2021-03-26 00:35:51,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:35:51,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:35:51,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551514312] [2021-03-26 00:35:51,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:35:51,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:35:51,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:35:51,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:35:51,478 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 116 [2021-03-26 00:35:51,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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) [2021-03-26 00:35:51,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:35:51,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 116 [2021-03-26 00:35:51,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:35:51,508 INFO L129 PetriNetUnfolder]: 34/113 cut-off events. [2021-03-26 00:35:51,509 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2021-03-26 00:35:51,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 113 events. 34/113 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 478 event pairs, 3 based on Foata normal form. 5/113 useless extension candidates. Maximal degree in co-relation 298. Up to 44 conditions per place. [2021-03-26 00:35:51,509 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 7 selfloop transitions, 8 changer transitions 11/35 dead transitions. [2021-03-26 00:35:51,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 206 flow [2021-03-26 00:35:51,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:35:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:35:51,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 461 transitions. [2021-03-26 00:35:51,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7948275862068965 [2021-03-26 00:35:51,511 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 461 transitions. [2021-03-26 00:35:51,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 461 transitions. [2021-03-26 00:35:51,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:35:51,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 461 transitions. [2021-03-26 00:35:51,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.2) internal successors, (461), 5 states have internal predecessors, (461), 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) [2021-03-26 00:35:51,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2021-03-26 00:35:51,514 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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) [2021-03-26 00:35:51,514 INFO L185 Difference]: Start difference. First operand has 30 places, 21 transitions, 84 flow. Second operand 5 states and 461 transitions. [2021-03-26 00:35:51,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 206 flow [2021-03-26 00:35:51,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 203 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:35:51,515 INFO L241 Difference]: Finished difference. Result has 35 places, 22 transitions, 114 flow [2021-03-26 00:35:51,516 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2021-03-26 00:35:51,516 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-26 00:35:51,516 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:35:51,516 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 22 transitions, 114 flow [2021-03-26 00:35:51,516 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 22 transitions, 114 flow [2021-03-26 00:35:51,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 22 transitions, 114 flow [2021-03-26 00:35:51,520 INFO L129 PetriNetUnfolder]: 8/53 cut-off events. [2021-03-26 00:35:51,521 INFO L130 PetriNetUnfolder]: For 49/58 co-relation queries the response was YES. [2021-03-26 00:35:51,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 53 events. 8/53 cut-off events. For 49/58 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 158 event pairs, 4 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 136. Up to 19 conditions per place. [2021-03-26 00:35:51,521 INFO L142 LiptonReduction]: Number of co-enabled transitions 130 [2021-03-26 00:35:51,526 INFO L154 LiptonReduction]: Checked pairs total: 54 [2021-03-26 00:35:51,526 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:35:51,526 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 00:35:51,527 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 114 flow [2021-03-26 00:35:51,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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) [2021-03-26 00:35:51,528 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:35:51,528 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:35:51,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:35:51,528 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:35:51,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:35:51,528 INFO L82 PathProgramCache]: Analyzing trace with hash 529862207, now seen corresponding path program 1 times [2021-03-26 00:35:51,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:35:51,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976343068] [2021-03-26 00:35:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:35:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:35:51,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:35:51,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,587 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:35:51,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:35:51,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:35:51,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976343068] [2021-03-26 00:35:51,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:35:51,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:35:51,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879625990] [2021-03-26 00:35:51,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:35:51,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:35:51,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:35:51,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:35:51,601 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 116 [2021-03-26 00:35:51,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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) [2021-03-26 00:35:51,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:35:51,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 116 [2021-03-26 00:35:51,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:35:51,656 INFO L129 PetriNetUnfolder]: 28/92 cut-off events. [2021-03-26 00:35:51,656 INFO L130 PetriNetUnfolder]: For 103/106 co-relation queries the response was YES. [2021-03-26 00:35:51,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 92 events. 28/92 cut-off events. For 103/106 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 329 event pairs, 2 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 288. Up to 30 conditions per place. [2021-03-26 00:35:51,658 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 4 selfloop transitions, 6 changer transitions 19/38 dead transitions. [2021-03-26 00:35:51,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 38 transitions, 254 flow [2021-03-26 00:35:51,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:35:51,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:35:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 642 transitions. [2021-03-26 00:35:51,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7906403940886699 [2021-03-26 00:35:51,660 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 642 transitions. [2021-03-26 00:35:51,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 642 transitions. [2021-03-26 00:35:51,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:35:51,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 642 transitions. [2021-03-26 00:35:51,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.71428571428571) internal successors, (642), 7 states have internal predecessors, (642), 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) [2021-03-26 00:35:51,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2021-03-26 00:35:51,663 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2021-03-26 00:35:51,663 INFO L185 Difference]: Start difference. First operand has 35 places, 22 transitions, 114 flow. Second operand 7 states and 642 transitions. [2021-03-26 00:35:51,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 38 transitions, 254 flow [2021-03-26 00:35:51,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 38 transitions, 227 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:35:51,666 INFO L241 Difference]: Finished difference. Result has 42 places, 19 transitions, 106 flow [2021-03-26 00:35:51,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=42, PETRI_TRANSITIONS=19} [2021-03-26 00:35:51,666 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 10 predicate places. [2021-03-26 00:35:51,666 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:35:51,667 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 19 transitions, 106 flow [2021-03-26 00:35:51,667 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 19 transitions, 106 flow [2021-03-26 00:35:51,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 19 transitions, 106 flow [2021-03-26 00:35:51,669 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-03-26 00:35:51,669 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-26 00:35:51,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 25 events. 2/25 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 1 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 67. Up to 7 conditions per place. [2021-03-26 00:35:51,670 INFO L142 LiptonReduction]: Number of co-enabled transitions 56 [2021-03-26 00:35:51,695 INFO L154 LiptonReduction]: Checked pairs total: 54 [2021-03-26 00:35:51,695 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:35:51,695 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 00:35:51,696 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 18 transitions, 104 flow [2021-03-26 00:35:51,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 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) [2021-03-26 00:35:51,696 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:35:51,696 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:35:51,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:35:51,696 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:35:51,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:35:51,697 INFO L82 PathProgramCache]: Analyzing trace with hash 200678101, now seen corresponding path program 1 times [2021-03-26 00:35:51,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:35:51,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982658686] [2021-03-26 00:35:51,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:35:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:35:51,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,757 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:35:51,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:35:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:35:51,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982658686] [2021-03-26 00:35:51,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:35:51,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:35:51,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714484786] [2021-03-26 00:35:51,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:35:51,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:35:51,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:35:51,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:35:51,766 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 117 [2021-03-26 00:35:51,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 18 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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) [2021-03-26 00:35:51,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:35:51,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 117 [2021-03-26 00:35:51,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:35:51,800 INFO L129 PetriNetUnfolder]: 1/27 cut-off events. [2021-03-26 00:35:51,800 INFO L130 PetriNetUnfolder]: For 51/57 co-relation queries the response was YES. [2021-03-26 00:35:51,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 27 events. 1/27 cut-off events. For 51/57 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 2/29 useless extension candidates. Maximal degree in co-relation 96. Up to 8 conditions per place. [2021-03-26 00:35:51,801 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 3 selfloop transitions, 5 changer transitions 6/22 dead transitions. [2021-03-26 00:35:51,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 22 transitions, 167 flow [2021-03-26 00:35:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:35:51,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:35:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2021-03-26 00:35:51,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7743589743589744 [2021-03-26 00:35:51,802 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2021-03-26 00:35:51,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2021-03-26 00:35:51,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:35:51,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2021-03-26 00:35:51,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 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) [2021-03-26 00:35:51,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-03-26 00:35:51,804 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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) [2021-03-26 00:35:51,804 INFO L185 Difference]: Start difference. First operand has 39 places, 18 transitions, 104 flow. Second operand 5 states and 453 transitions. [2021-03-26 00:35:51,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 22 transitions, 167 flow [2021-03-26 00:35:51,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 123 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-03-26 00:35:51,806 INFO L241 Difference]: Finished difference. Result has 36 places, 16 transitions, 79 flow [2021-03-26 00:35:51,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=79, PETRI_PLACES=36, PETRI_TRANSITIONS=16} [2021-03-26 00:35:51,806 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2021-03-26 00:35:51,806 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:35:51,806 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 16 transitions, 79 flow [2021-03-26 00:35:51,806 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 16 transitions, 79 flow [2021-03-26 00:35:51,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 16 transitions, 79 flow [2021-03-26 00:35:51,808 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-26 00:35:51,808 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-26 00:35:51,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 17 events. 0/17 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:35:51,808 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 00:35:51,853 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-26 00:35:51,853 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:35:51,853 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-26 00:35:51,854 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 14 transitions, 73 flow [2021-03-26 00:35:51,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 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) [2021-03-26 00:35:51,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:35:51,854 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:35:51,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:35:51,854 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:35:51,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:35:51,855 INFO L82 PathProgramCache]: Analyzing trace with hash -230626031, now seen corresponding path program 2 times [2021-03-26 00:35:51,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:35:51,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350849299] [2021-03-26 00:35:51,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:35:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:35:51,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:35:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:35:51,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350849299] [2021-03-26 00:35:51,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:35:51,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:35:51,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546770219] [2021-03-26 00:35:51,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:35:51,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:35:51,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:35:51,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:35:51,882 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 119 [2021-03-26 00:35:51,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 14 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2021-03-26 00:35:51,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:35:51,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 119 [2021-03-26 00:35:51,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:35:51,892 INFO L129 PetriNetUnfolder]: 16/45 cut-off events. [2021-03-26 00:35:51,892 INFO L130 PetriNetUnfolder]: For 44/46 co-relation queries the response was YES. [2021-03-26 00:35:51,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 45 events. 16/45 cut-off events. For 44/46 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 119 event pairs, 7 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 130. Up to 34 conditions per place. [2021-03-26 00:35:51,893 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 4 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2021-03-26 00:35:51,893 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 17 transitions, 100 flow [2021-03-26 00:35:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:35:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:35:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-03-26 00:35:51,894 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-03-26 00:35:51,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-03-26 00:35:51,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-03-26 00:35:51,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:35:51,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-03-26 00:35:51,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2021-03-26 00:35:51,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2021-03-26 00:35:51,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2021-03-26 00:35:51,895 INFO L185 Difference]: Start difference. First operand has 34 places, 14 transitions, 73 flow. Second operand 3 states and 306 transitions. [2021-03-26 00:35:51,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 17 transitions, 100 flow [2021-03-26 00:35:51,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 17 transitions, 76 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-26 00:35:51,896 INFO L241 Difference]: Finished difference. Result has 30 places, 16 transitions, 72 flow [2021-03-26 00:35:51,896 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=30, PETRI_TRANSITIONS=16} [2021-03-26 00:35:51,897 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-26 00:35:51,897 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:35:51,897 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 16 transitions, 72 flow [2021-03-26 00:35:51,897 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 16 transitions, 72 flow [2021-03-26 00:35:51,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 16 transitions, 72 flow [2021-03-26 00:35:51,899 INFO L129 PetriNetUnfolder]: 12/39 cut-off events. [2021-03-26 00:35:51,899 INFO L130 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2021-03-26 00:35:51,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 39 events. 12/39 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 86 event pairs, 7 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 98. Up to 28 conditions per place. [2021-03-26 00:35:51,900 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-26 00:35:51,933 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 00:35:51,934 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:35:51,934 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 00:35:51,934 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 73 flow [2021-03-26 00:35:51,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2021-03-26 00:35:51,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:35:51,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:35:51,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:35:51,935 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:35:51,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:35:51,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1098217109, now seen corresponding path program 1 times [2021-03-26 00:35:51,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:35:51,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166387085] [2021-03-26 00:35:51,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:35:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:35:51,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:51,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:51,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:35:51,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:35:51,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166387085] [2021-03-26 00:35:51,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:35:51,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:35:51,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22335958] [2021-03-26 00:35:51,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:35:51,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:35:51,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:35:51,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:35:51,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 120 [2021-03-26 00:35:51,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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) [2021-03-26 00:35:51,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:35:51,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 120 [2021-03-26 00:35:51,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:35:51,978 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-03-26 00:35:51,978 INFO L130 PetriNetUnfolder]: For 16/18 co-relation queries the response was YES. [2021-03-26 00:35:51,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 29 events. 6/29 cut-off events. For 16/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 1 based on Foata normal form. 4/32 useless extension candidates. Maximal degree in co-relation 87. Up to 18 conditions per place. [2021-03-26 00:35:51,979 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 2 selfloop transitions, 5 changer transitions 3/19 dead transitions. [2021-03-26 00:35:51,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 19 transitions, 108 flow [2021-03-26 00:35:51,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:35:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:35:51,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 407 transitions. [2021-03-26 00:35:51,980 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8479166666666667 [2021-03-26 00:35:51,980 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 407 transitions. [2021-03-26 00:35:51,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 407 transitions. [2021-03-26 00:35:51,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:35:51,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 407 transitions. [2021-03-26 00:35:51,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.75) internal successors, (407), 4 states have internal predecessors, (407), 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) [2021-03-26 00:35:51,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-26 00:35:51,984 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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) [2021-03-26 00:35:51,984 INFO L185 Difference]: Start difference. First operand has 30 places, 16 transitions, 73 flow. Second operand 4 states and 407 transitions. [2021-03-26 00:35:51,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 19 transitions, 108 flow [2021-03-26 00:35:51,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 19 transitions, 99 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 00:35:51,985 INFO L241 Difference]: Finished difference. Result has 31 places, 16 transitions, 82 flow [2021-03-26 00:35:51,985 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=31, PETRI_TRANSITIONS=16} [2021-03-26 00:35:51,985 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2021-03-26 00:35:51,985 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:35:51,985 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 16 transitions, 82 flow [2021-03-26 00:35:51,985 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 16 transitions, 82 flow [2021-03-26 00:35:51,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 16 transitions, 82 flow [2021-03-26 00:35:51,987 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 00:35:51,987 INFO L130 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2021-03-26 00:35:51,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 21 events. 2/21 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 1 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 56. Up to 10 conditions per place. [2021-03-26 00:35:51,987 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 00:35:52,087 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 00:35:52,087 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:35:52,087 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-03-26 00:35:52,088 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 15 transitions, 83 flow [2021-03-26 00:35:52,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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) [2021-03-26 00:35:52,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:35:52,088 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:35:52,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:35:52,088 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:35:52,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:35:52,089 INFO L82 PathProgramCache]: Analyzing trace with hash 644594187, now seen corresponding path program 1 times [2021-03-26 00:35:52,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:35:52,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863010008] [2021-03-26 00:35:52,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:35:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:35:52,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:52,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:52,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:52,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:52,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:52,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:35:52,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:35:52,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:35:52,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:35:52,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863010008] [2021-03-26 00:35:52,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:35:52,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:35:52,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927547138] [2021-03-26 00:35:52,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:35:52,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:35:52,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:35:52,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:35:52,147 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 122 [2021-03-26 00:35:52,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 15 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 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) [2021-03-26 00:35:52,147 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:35:52,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 122 [2021-03-26 00:35:52,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:35:52,176 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-26 00:35:52,176 INFO L130 PetriNetUnfolder]: For 38/46 co-relation queries the response was YES. [2021-03-26 00:35:52,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 17 events. 1/17 cut-off events. For 38/46 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 6/22 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2021-03-26 00:35:52,178 INFO L132 encePairwiseOnDemand]: 115/122 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2021-03-26 00:35:52,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 14 transitions, 87 flow [2021-03-26 00:35:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:35:52,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:35:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 502 transitions. [2021-03-26 00:35:52,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8229508196721311 [2021-03-26 00:35:52,179 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 502 transitions. [2021-03-26 00:35:52,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 502 transitions. [2021-03-26 00:35:52,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:35:52,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 502 transitions. [2021-03-26 00:35:52,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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) [2021-03-26 00:35:52,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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) [2021-03-26 00:35:52,185 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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) [2021-03-26 00:35:52,185 INFO L185 Difference]: Start difference. First operand has 30 places, 15 transitions, 83 flow. Second operand 5 states and 502 transitions. [2021-03-26 00:35:52,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 14 transitions, 87 flow [2021-03-26 00:35:52,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 14 transitions, 73 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-26 00:35:52,186 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-26 00:35:52,186 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-26 00:35:52,187 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-26 00:35:52,187 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:35:52,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 00:35:52,187 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 00:35:52,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:35:52,188 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:35:52,188 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:35:52,188 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. [2021-03-26 00:35:52,188 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:35:52,188 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:35:52,188 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:35:52,188 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:35:52,191 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:35:52,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 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) [2021-03-26 00:35:52,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:35:52,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:35:52 BasicIcfg [2021-03-26 00:35:52,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:35:52,199 INFO L168 Benchmark]: Toolchain (without parser) took 4394.82 ms. Allocated memory was 335.5 MB in the beginning and 446.7 MB in the end (delta: 111.1 MB). Free memory was 298.8 MB in the beginning and 187.9 MB in the end (delta: 110.9 MB). Peak memory consumption was 223.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:35:52,199 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 335.5 MB. Free memory is still 316.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:35:52,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.24 ms. Allocated memory is still 335.5 MB. Free memory was 298.7 MB in the beginning and 297.7 MB in the end (delta: 970.7 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-03-26 00:35:52,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.04 ms. Allocated memory is still 335.5 MB. Free memory was 297.7 MB in the beginning and 295.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:35:52,200 INFO L168 Benchmark]: Boogie Preprocessor took 26.21 ms. Allocated memory is still 335.5 MB. Free memory was 295.6 MB in the beginning and 294.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:35:52,200 INFO L168 Benchmark]: RCFGBuilder took 401.75 ms. Allocated memory is still 335.5 MB. Free memory was 294.2 MB in the beginning and 270.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:35:52,201 INFO L168 Benchmark]: TraceAbstraction took 3455.10 ms. Allocated memory was 335.5 MB in the beginning and 446.7 MB in the end (delta: 111.1 MB). Free memory was 269.4 MB in the beginning and 187.9 MB in the end (delta: 81.4 MB). Peak memory consumption was 193.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:35:52,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 335.5 MB. Free memory is still 316.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 468.24 ms. Allocated memory is still 335.5 MB. Free memory was 298.7 MB in the beginning and 297.7 MB in the end (delta: 970.7 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.04 ms. Allocated memory is still 335.5 MB. Free memory was 297.7 MB in the beginning and 295.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.21 ms. Allocated memory is still 335.5 MB. Free memory was 295.6 MB in the beginning and 294.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 401.75 ms. Allocated memory is still 335.5 MB. Free memory was 294.2 MB in the beginning and 270.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3455.10 ms. Allocated memory was 335.5 MB in the beginning and 446.7 MB in the end (delta: 111.1 MB). Free memory was 269.4 MB in the beginning and 187.9 MB in the end (delta: 81.4 MB). Peak memory consumption was 193.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1454.5ms, 68 PlacesBefore, 32 PlacesAfterwards, 59 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 593, positive: 560, positive conditional: 560, positive unconditional: 0, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 520, positive: 495, positive conditional: 0, positive unconditional: 495, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 520, positive: 495, positive conditional: 0, positive unconditional: 495, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 520, positive: 489, positive conditional: 0, positive unconditional: 489, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 101, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 593, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 520, unknown conditional: 520, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 710.3ms, 35 PlacesBefore, 30 PlacesAfterwards, 26 TransitionsBefore, 21 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 186 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 111, positive conditional: 111, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 65, positive conditional: 12, positive unconditional: 53, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 72, positive: 65, positive conditional: 12, positive unconditional: 53, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 33, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 124, positive: 46, positive conditional: 46, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 72, unknown conditional: 72, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 41, Positive conditional cache size: 41, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.9ms, 35 PlacesBefore, 35 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 5, negative conditional: 5, 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: 5, positive unconditional: 5, 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: 5, positive unconditional: 5, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 51, Positive conditional cache size: 51, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.5ms, 42 PlacesBefore, 39 PlacesAfterwards, 19 TransitionsBefore, 18 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 4, 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: 5, positive: 5, positive conditional: 4, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 18, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 28, Positive conditional cache size: 28, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.9ms, 36 PlacesBefore, 34 PlacesAfterwards, 16 TransitionsBefore, 14 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 11, 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: 11, positive: 11, positive conditional: 11, 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: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 21, Positive conditional cache size: 21, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.7ms, 30 PlacesBefore, 30 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 26 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 10, Positive conditional cache size: 10, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.7ms, 31 PlacesBefore, 30 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 1, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 30 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): 1, Positive cache size: 1, Positive conditional cache size: 1, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, 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, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3376.0ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 328.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1509.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 SDtfs, 30 SDslu, 25 SDs, 0 SdLazy, 83 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 95.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=2, InterpolantAutomatonStates: 33, 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: 14.3ms SsaConstructionTime, 116.4ms SatisfiabilityAnalysisTime, 328.4ms InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 406 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...