/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:12:32,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:12:32,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:12:32,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:12:32,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:12:32,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:12:32,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:12:32,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:12:32,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:12:32,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:12:32,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:12:33,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:12:33,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:12:33,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:12:33,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:12:33,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:12:33,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:12:33,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:12:33,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:12:33,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:12:33,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:12:33,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:12:33,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:12:33,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:12:33,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:12:33,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:12:33,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:12:33,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:12:33,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:12:33,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:12:33,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:12:33,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:12:33,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:12:33,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:12:33,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:12:33,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:12:33,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:12:33,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:12:33,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:12:33,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:12:33,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:12:33,058 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-SemanticLbe-SemanticLooper.epf [2020-10-16 05:12:33,097 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:12:33,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:12:33,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:12:33,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:12:33,100 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:12:33,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:12:33,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:12:33,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:12:33,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:12:33,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:12:33,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:12:33,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:12:33,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:12:33,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:12:33,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:12:33,103 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:12:33,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:12:33,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:12:33,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:12:33,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:12:33,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:12:33,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:12:33,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:12:33,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:12:33,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:12:33,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:12:33,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:12:33,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:12:33,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:12:33,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:12:33,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:12:33,398 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:12:33,400 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:12:33,400 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:12:33,401 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-16 05:12:33,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98b57e80/e3460988a35d443e81c5d3e1f4032827/FLAG16483918e [2020-10-16 05:12:34,047 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:12:34,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-10-16 05:12:34,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98b57e80/e3460988a35d443e81c5d3e1f4032827/FLAG16483918e [2020-10-16 05:12:34,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98b57e80/e3460988a35d443e81c5d3e1f4032827 [2020-10-16 05:12:34,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:12:34,340 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:12:34,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:12:34,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:12:34,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:12:34,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:12:34" (1/1) ... [2020-10-16 05:12:34,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e86d97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:34, skipping insertion in model container [2020-10-16 05:12:34,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:12:34" (1/1) ... [2020-10-16 05:12:34,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:12:34,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:12:34,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:12:34,908 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:12:34,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:12:35,044 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:12:35,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35 WrapperNode [2020-10-16 05:12:35,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:12:35,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:12:35,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:12:35,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:12:35,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:12:35,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:12:35,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:12:35,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:12:35,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... [2020-10-16 05:12:35,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:12:35,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:12:35,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:12:35,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:12:35,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:12:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:12:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:12:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:12:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:12:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 05:12:35,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 05:12:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 05:12:35,201 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 05:12:35,202 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 05:12:35,202 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 05:12:35,205 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 05:12:35,205 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 05:12:35,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:12:35,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:12:35,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:12:35,208 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:12:35,663 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:12:35,664 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 05:12:35,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:12:35 BoogieIcfgContainer [2020-10-16 05:12:35,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:12:35,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:12:35,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:12:35,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:12:35,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:12:34" (1/3) ... [2020-10-16 05:12:35,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe75f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:12:35, skipping insertion in model container [2020-10-16 05:12:35,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:12:35" (2/3) ... [2020-10-16 05:12:35,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe75f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:12:35, skipping insertion in model container [2020-10-16 05:12:35,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:12:35" (3/3) ... [2020-10-16 05:12:35,676 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-10-16 05:12:35,687 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:12:35,698 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:12:35,699 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:12:35,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,735 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,735 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,736 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,736 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,737 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,737 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,738 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,739 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,740 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,740 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,740 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,740 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,741 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,741 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,745 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,745 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,749 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,750 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,750 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,750 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,752 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,753 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,753 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,755 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,756 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:12:35,773 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 05:12:35,793 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:12:35,794 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:12:35,794 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:12:35,794 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:12:35,794 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:12:35,794 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:12:35,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:12:35,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:12:35,807 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-10-16 05:12:35,862 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-10-16 05:12:35,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:35,868 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-10-16 05:12:35,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2020-10-16 05:12:35,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2020-10-16 05:12:35,878 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:12:35,880 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2020-10-16 05:12:35,883 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2020-10-16 05:12:35,884 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2020-10-16 05:12:35,908 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2020-10-16 05:12:35,909 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:35,910 INFO L80 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 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. [2020-10-16 05:12:35,912 INFO L117 LiptonReduction]: Number of co-enabled transitions 1392 [2020-10-16 05:12:37,451 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-16 05:12:37,580 INFO L132 LiptonReduction]: Checked pairs total: 3412 [2020-10-16 05:12:37,580 INFO L134 LiptonReduction]: Total number of compositions: 52 [2020-10-16 05:12:37,583 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1707 [2020-10-16 05:12:37,592 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2020-10-16 05:12:37,592 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:37,592 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:37,593 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:37,594 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:37,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:37,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1611556140, now seen corresponding path program 1 times [2020-10-16 05:12:37,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:37,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7617793] [2020-10-16 05:12:37,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:37,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7617793] [2020-10-16 05:12:37,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:37,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:12:37,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885982563] [2020-10-16 05:12:37,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 05:12:37,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:37,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 05:12:37,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 05:12:37,830 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 138 [2020-10-16 05:12:37,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 58 flow. Second operand 2 states. [2020-10-16 05:12:37,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:37,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 138 [2020-10-16 05:12:37,834 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:37,846 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:12:37,846 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:37,846 INFO L80 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2020-10-16 05:12:37,848 INFO L132 encePairwiseOnDemand]: 137/138 looper letters, 0 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2020-10-16 05:12:37,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 22 transitions, 56 flow [2020-10-16 05:12:37,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 05:12:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 05:12:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 261 transitions. [2020-10-16 05:12:37,863 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9456521739130435 [2020-10-16 05:12:37,864 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 261 transitions. [2020-10-16 05:12:37,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 261 transitions. [2020-10-16 05:12:37,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:37,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 261 transitions. [2020-10-16 05:12:37,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 05:12:37,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 05:12:37,880 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 05:12:37,883 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 58 flow. Second operand 2 states and 261 transitions. [2020-10-16 05:12:37,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 22 transitions, 56 flow [2020-10-16 05:12:37,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 22 transitions, 52 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 05:12:37,888 INFO L241 Difference]: Finished difference. Result has 32 places, 22 transitions, 52 flow [2020-10-16 05:12:37,891 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2020-10-16 05:12:37,892 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, -3 predicate places. [2020-10-16 05:12:37,893 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 52 flow [2020-10-16 05:12:37,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 05:12:37,893 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:37,893 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:37,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:12:37,894 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:37,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:37,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1581367250, now seen corresponding path program 1 times [2020-10-16 05:12:37,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:37,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396439962] [2020-10-16 05:12:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:37,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396439962] [2020-10-16 05:12:37,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:37,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:12:37,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703207910] [2020-10-16 05:12:37,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:12:37,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:37,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:12:37,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:12:37,991 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 138 [2020-10-16 05:12:37,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 52 flow. Second operand 3 states. [2020-10-16 05:12:37,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:37,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 138 [2020-10-16 05:12:37,992 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,008 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:12:38,008 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:12:38,008 INFO L80 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:12:38,009 INFO L132 encePairwiseOnDemand]: 135/138 looper letters, 1 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2020-10-16 05:12:38,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 22 transitions, 58 flow [2020-10-16 05:12:38,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:12:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:12:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2020-10-16 05:12:38,012 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.857487922705314 [2020-10-16 05:12:38,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:12:38,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:12:38,019 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:12:38,020 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 52 flow. Second operand 3 states and 355 transitions. [2020-10-16 05:12:38,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 22 transitions, 58 flow [2020-10-16 05:12:38,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 22 transitions, 58 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:12:38,022 INFO L241 Difference]: Finished difference. Result has 35 places, 22 transitions, 60 flow [2020-10-16 05:12:38,022 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,023 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2020-10-16 05:12:38,023 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 60 flow [2020-10-16 05:12:38,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:12:38,023 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,024 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:12:38,024 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2101455728, now seen corresponding path program 1 times [2020-10-16 05:12:38,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68987471] [2020-10-16 05:12:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68987471] [2020-10-16 05:12:38,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:38,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751897482] [2020-10-16 05:12:38,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:38,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:38,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:38,096 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2020-10-16 05:12:38,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 60 flow. Second operand 4 states. [2020-10-16 05:12:38,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2020-10-16 05:12:38,097 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,131 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2020-10-16 05:12:38,132 INFO L130 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2020-10-16 05:12:38,132 INFO L80 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 27 events. 0/27 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:12:38,132 INFO L132 encePairwiseOnDemand]: 134/138 looper letters, 1 selfloop transitions, 3 changer transitions 1/23 dead transitions. [2020-10-16 05:12:38,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 23 transitions, 75 flow [2020-10-16 05:12:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 463 transitions. [2020-10-16 05:12:38,137 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8387681159420289 [2020-10-16 05:12:38,137 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 463 transitions. [2020-10-16 05:12:38,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 463 transitions. [2020-10-16 05:12:38,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 463 transitions. [2020-10-16 05:12:38,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:38,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:38,144 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:38,144 INFO L185 Difference]: Start difference. First operand has 35 places, 22 transitions, 60 flow. Second operand 4 states and 463 transitions. [2020-10-16 05:12:38,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 23 transitions, 75 flow [2020-10-16 05:12:38,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 23 transitions, 69 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:12:38,146 INFO L241 Difference]: Finished difference. Result has 38 places, 22 transitions, 70 flow [2020-10-16 05:12:38,146 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=38, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,147 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2020-10-16 05:12:38,147 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 22 transitions, 70 flow [2020-10-16 05:12:38,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:38,147 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,147 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:12:38,148 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,148 INFO L82 PathProgramCache]: Analyzing trace with hash -985104395, now seen corresponding path program 1 times [2020-10-16 05:12:38,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593156042] [2020-10-16 05:12:38,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593156042] [2020-10-16 05:12:38,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:12:38,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975041006] [2020-10-16 05:12:38,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:12:38,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:12:38,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:12:38,236 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 138 [2020-10-16 05:12:38,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 22 transitions, 70 flow. Second operand 3 states. [2020-10-16 05:12:38,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 138 [2020-10-16 05:12:38,237 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,247 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:12:38,247 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 05:12:38,247 INFO L80 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 22 events. 0/22 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:12:38,248 INFO L132 encePairwiseOnDemand]: 135/138 looper letters, 1 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2020-10-16 05:12:38,248 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 76 flow [2020-10-16 05:12:38,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:12:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:12:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2020-10-16 05:12:38,250 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.857487922705314 [2020-10-16 05:12:38,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2020-10-16 05:12:38,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:12:38,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:12:38,253 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:12:38,253 INFO L185 Difference]: Start difference. First operand has 38 places, 22 transitions, 70 flow. Second operand 3 states and 355 transitions. [2020-10-16 05:12:38,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 76 flow [2020-10-16 05:12:38,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 62 flow, removed 2 selfloop flow, removed 5 redundant places. [2020-10-16 05:12:38,255 INFO L241 Difference]: Finished difference. Result has 36 places, 22 transitions, 64 flow [2020-10-16 05:12:38,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,255 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2020-10-16 05:12:38,255 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 64 flow [2020-10-16 05:12:38,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:12:38,256 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,256 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:12:38,256 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,257 INFO L82 PathProgramCache]: Analyzing trace with hash -473465693, now seen corresponding path program 1 times [2020-10-16 05:12:38,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220478199] [2020-10-16 05:12:38,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220478199] [2020-10-16 05:12:38,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:38,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415030779] [2020-10-16 05:12:38,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:38,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:38,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:38,305 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2020-10-16 05:12:38,305 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 64 flow. Second operand 4 states. [2020-10-16 05:12:38,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2020-10-16 05:12:38,306 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,328 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2020-10-16 05:12:38,328 INFO L130 PetriNetUnfolder]: For 11/18 co-relation queries the response was YES. [2020-10-16 05:12:38,329 INFO L80 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 27 events. 0/27 cut-off events. For 11/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 0 based on Foata normal form. 2/29 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:12:38,329 INFO L132 encePairwiseOnDemand]: 134/138 looper letters, 1 selfloop transitions, 3 changer transitions 1/23 dead transitions. [2020-10-16 05:12:38,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 23 transitions, 79 flow [2020-10-16 05:12:38,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:38,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2020-10-16 05:12:38,331 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8242753623188406 [2020-10-16 05:12:38,332 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:38,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:38,335 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:38,335 INFO L185 Difference]: Start difference. First operand has 36 places, 22 transitions, 64 flow. Second operand 4 states and 455 transitions. [2020-10-16 05:12:38,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 23 transitions, 79 flow [2020-10-16 05:12:38,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 23 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:12:38,337 INFO L241 Difference]: Finished difference. Result has 39 places, 22 transitions, 74 flow [2020-10-16 05:12:38,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,337 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2020-10-16 05:12:38,337 INFO L481 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 74 flow [2020-10-16 05:12:38,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:38,338 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,338 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:12:38,338 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,339 INFO L82 PathProgramCache]: Analyzing trace with hash -950354355, now seen corresponding path program 1 times [2020-10-16 05:12:38,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89996292] [2020-10-16 05:12:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89996292] [2020-10-16 05:12:38,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:38,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508669491] [2020-10-16 05:12:38,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:38,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:38,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:38,392 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2020-10-16 05:12:38,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 74 flow. Second operand 4 states. [2020-10-16 05:12:38,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2020-10-16 05:12:38,393 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,418 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2020-10-16 05:12:38,419 INFO L130 PetriNetUnfolder]: For 30/33 co-relation queries the response was YES. [2020-10-16 05:12:38,419 INFO L80 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 30 events. 0/30 cut-off events. For 30/33 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:12:38,419 INFO L132 encePairwiseOnDemand]: 134/138 looper letters, 1 selfloop transitions, 3 changer transitions 1/23 dead transitions. [2020-10-16 05:12:38,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 23 transitions, 86 flow [2020-10-16 05:12:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:38,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2020-10-16 05:12:38,422 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8242753623188406 [2020-10-16 05:12:38,422 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2020-10-16 05:12:38,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:38,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:38,425 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:38,425 INFO L185 Difference]: Start difference. First operand has 39 places, 22 transitions, 74 flow. Second operand 4 states and 455 transitions. [2020-10-16 05:12:38,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 23 transitions, 86 flow [2020-10-16 05:12:38,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 23 transitions, 74 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 05:12:38,427 INFO L241 Difference]: Finished difference. Result has 40 places, 22 transitions, 76 flow [2020-10-16 05:12:38,428 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=76, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2020-10-16 05:12:38,428 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2020-10-16 05:12:38,428 INFO L481 AbstractCegarLoop]: Abstraction has has 40 places, 22 transitions, 76 flow [2020-10-16 05:12:38,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:38,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:12:38,428 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:12:38,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:12:38,429 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:12:38,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:12:38,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1342483889, now seen corresponding path program 1 times [2020-10-16 05:12:38,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:12:38,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309427529] [2020-10-16 05:12:38,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:12:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:12:38,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:12:38,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309427529] [2020-10-16 05:12:38,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:12:38,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:12:38,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440983294] [2020-10-16 05:12:38,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:12:38,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:12:38,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:12:38,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:12:38,470 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 138 [2020-10-16 05:12:38,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 22 transitions, 76 flow. Second operand 4 states. [2020-10-16 05:12:38,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:12:38,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 138 [2020-10-16 05:12:38,471 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:12:38,488 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2020-10-16 05:12:38,488 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2020-10-16 05:12:38,489 INFO L80 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 21 events. 0/21 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-16 05:12:38,489 INFO L132 encePairwiseOnDemand]: 135/138 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2020-10-16 05:12:38,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 21 transitions, 72 flow [2020-10-16 05:12:38,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:12:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:12:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 453 transitions. [2020-10-16 05:12:38,491 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8206521739130435 [2020-10-16 05:12:38,491 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 453 transitions. [2020-10-16 05:12:38,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 453 transitions. [2020-10-16 05:12:38,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:12:38,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 453 transitions. [2020-10-16 05:12:38,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:12:38,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:12:38,494 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:12:38,494 INFO L185 Difference]: Start difference. First operand has 40 places, 22 transitions, 76 flow. Second operand 4 states and 453 transitions. [2020-10-16 05:12:38,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 21 transitions, 72 flow [2020-10-16 05:12:38,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 21 transitions, 56 flow, removed 0 selfloop flow, removed 8 redundant places. [2020-10-16 05:12:38,496 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2020-10-16 05:12:38,496 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2020-10-16 05:12:38,496 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2020-10-16 05:12:38,496 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2020-10-16 05:12:38,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:12:38,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:12:38,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:12:38 BasicIcfg [2020-10-16 05:12:38,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:12:38,503 INFO L168 Benchmark]: Toolchain (without parser) took 4162.68 ms. Allocated memory was 254.3 MB in the beginning and 374.9 MB in the end (delta: 120.6 MB). Free memory was 207.1 MB in the beginning and 238.4 MB in the end (delta: -31.3 MB). Peak memory consumption was 89.3 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:38,504 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 254.3 MB. Free memory is still 228.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:12:38,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.32 ms. Allocated memory was 254.3 MB in the beginning and 323.5 MB in the end (delta: 69.2 MB). Free memory was 207.1 MB in the beginning and 276.6 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:38,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.55 ms. Allocated memory is still 323.5 MB. Free memory was 276.6 MB in the beginning and 274.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:38,506 INFO L168 Benchmark]: Boogie Preprocessor took 28.94 ms. Allocated memory is still 323.5 MB. Free memory was 274.1 MB in the beginning and 271.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:38,507 INFO L168 Benchmark]: RCFGBuilder took 542.32 ms. Allocated memory is still 323.5 MB. Free memory was 271.6 MB in the beginning and 247.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:38,508 INFO L168 Benchmark]: TraceAbstraction took 2833.10 ms. Allocated memory was 323.5 MB in the beginning and 374.9 MB in the end (delta: 51.4 MB). Free memory was 247.3 MB in the beginning and 238.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 60.2 MB. Max. memory is 14.2 GB. [2020-10-16 05:12:38,512 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 254.3 MB. Free memory is still 228.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 703.32 ms. Allocated memory was 254.3 MB in the beginning and 323.5 MB in the end (delta: 69.2 MB). Free memory was 207.1 MB in the beginning and 276.6 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.55 ms. Allocated memory is still 323.5 MB. Free memory was 276.6 MB in the beginning and 274.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.94 ms. Allocated memory is still 323.5 MB. Free memory was 274.1 MB in the beginning and 271.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 542.32 ms. Allocated memory is still 323.5 MB. Free memory was 271.6 MB in the beginning and 247.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2833.10 ms. Allocated memory was 323.5 MB in the beginning and 374.9 MB in the end (delta: 51.4 MB). Free memory was 247.3 MB in the beginning and 238.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 60.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 987 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 174 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 81 PlacesBefore, 35 PlacesAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 3412 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 17 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 21 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 2989 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...