/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 12:24:42,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 12:24:42,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 12:24:42,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 12:24:42,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 12:24:42,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 12:24:42,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 12:24:42,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 12:24:42,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 12:24:42,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 12:24:42,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 12:24:42,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 12:24:42,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 12:24:42,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 12:24:42,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 12:24:42,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 12:24:42,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 12:24:42,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 12:24:42,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 12:24:42,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 12:24:42,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 12:24:42,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 12:24:42,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 12:24:42,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 12:24:42,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 12:24:42,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 12:24:42,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 12:24:42,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 12:24:42,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 12:24:42,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 12:24:42,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 12:24:42,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 12:24:42,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 12:24:42,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 12:24:42,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 12:24:42,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 12:24:42,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 12:24:42,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 12:24:42,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 12:24:42,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 12:24:42,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 12:24:42,703 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-NoLbe.epf [2021-06-10 12:24:42,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 12:24:42,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 12:24:42,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 12:24:42,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 12:24:42,731 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 12:24:42,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 12:24:42,732 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 12:24:42,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 12:24:42,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 12:24:42,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 12:24:42,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 12:24:42,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 12:24:42,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 12:24:42,733 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 12:24:42,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 12:24:42,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 12:24:42,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 12:24:42,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 12:24:42,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 12:24:42,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 12:24:42,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 12:24:42,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 12:24:42,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 12:24:42,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 12:24:42,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 12:24:42,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 12:24:42,992 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 12:24:42,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2021-06-10 12:24:43,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481a969bb/d0ae476f0b204aaca3370e9e69195ccf/FLAGd3edc24d2 [2021-06-10 12:24:43,455 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 12:24:43,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2021-06-10 12:24:43,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481a969bb/d0ae476f0b204aaca3370e9e69195ccf/FLAGd3edc24d2 [2021-06-10 12:24:43,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/481a969bb/d0ae476f0b204aaca3370e9e69195ccf [2021-06-10 12:24:43,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 12:24:43,500 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 12:24:43,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 12:24:43,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 12:24:43,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 12:24:43,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be857f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43, skipping insertion in model container [2021-06-10 12:24:43,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 12:24:43,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 12:24:43,693 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/safe007_pso.oepc.i[950,963] [2021-06-10 12:24:43,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:24:43,826 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 12:24:43,834 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/safe007_pso.oepc.i[950,963] [2021-06-10 12:24:43,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 12:24:43,914 INFO L208 MainTranslator]: Completed translation [2021-06-10 12:24:43,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43 WrapperNode [2021-06-10 12:24:43,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 12:24:43,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 12:24:43,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 12:24:43,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 12:24:43,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 12:24:43,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 12:24:43,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 12:24:43,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 12:24:43,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (1/1) ... [2021-06-10 12:24:43,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 12:24:43,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 12:24:43,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 12:24:43,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 12:24:43,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (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 [2021-06-10 12:24:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 12:24:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 12:24:44,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 12:24:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 12:24:44,015 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 12:24:44,015 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 12:24:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 12:24:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 12:24:44,016 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 12:24:44,016 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 12:24:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 12:24:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 12:24:44,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 12:24:44,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 12:24:44,018 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 12:24:44,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 12:24:44,263 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-10 12:24:44,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:24:44 BoogieIcfgContainer [2021-06-10 12:24:44,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 12:24:44,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 12:24:44,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 12:24:44,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 12:24:44,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 12:24:43" (1/3) ... [2021-06-10 12:24:44,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b80c912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:24:44, skipping insertion in model container [2021-06-10 12:24:44,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 12:24:43" (2/3) ... [2021-06-10 12:24:44,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b80c912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 12:24:44, skipping insertion in model container [2021-06-10 12:24:44,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 12:24:44" (3/3) ... [2021-06-10 12:24:44,270 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2021-06-10 12:24:44,273 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 12:24:44,276 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 12:24:44,277 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 12:24:44,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,295 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,295 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,297 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,303 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,305 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,305 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,305 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 12:24:44,306 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 12:24:44,318 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-10 12:24:44,332 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 12:24:44,332 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 12:24:44,332 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 12:24:44,332 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 12:24:44,332 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 12:24:44,332 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 12:24:44,332 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 12:24:44,332 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 12:24:44,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-06-10 12:24:44,363 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-06-10 12:24:44,363 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:24:44,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-10 12:24:44,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-06-10 12:24:44,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-06-10 12:24:44,380 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-06-10 12:24:44,380 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:24:44,380 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:24:44,380 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:24:44,381 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:24:44,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:24:44,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1296421566, now seen corresponding path program 1 times [2021-06-10 12:24:44,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:24:44,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374119375] [2021-06-10 12:24:44,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:24:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:24:44,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:44,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:44,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:44,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:24:44,642 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 12:24:44,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:24:44,656 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:24:44,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:24:44,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:44,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:44,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:44,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:44,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:44,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:24:44,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374119375] [2021-06-10 12:24:44,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:24:44,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:24:44,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612030840] [2021-06-10 12:24:44,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:24:44,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:24:44,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:24:44,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:24:44,724 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 76 [2021-06-10 12:24:44,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 131 flow. Second operand has 7 states, 7 states have (on average 61.285714285714285) internal successors, (429), 7 states have internal predecessors, (429), 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) [2021-06-10 12:24:44,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:24:44,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 76 [2021-06-10 12:24:44,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:24:44,898 INFO L129 PetriNetUnfolder]: 69/227 cut-off events. [2021-06-10 12:24:44,902 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 12:24:44,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 227 events. 69/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 945 event pairs, 22 based on Foata normal form. 10/228 useless extension candidates. Maximal degree in co-relation 338. Up to 49 conditions per place. [2021-06-10 12:24:44,905 INFO L132 encePairwiseOnDemand]: 69/76 looper letters, 12 selfloop transitions, 2 changer transitions 22/84 dead transitions. [2021-06-10 12:24:44,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 84 transitions, 249 flow [2021-06-10 12:24:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-10 12:24:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-10 12:24:44,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 580 transitions. [2021-06-10 12:24:44,918 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.847953216374269 [2021-06-10 12:24:44,918 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 580 transitions. [2021-06-10 12:24:44,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 580 transitions. [2021-06-10 12:24:44,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:24:44,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 580 transitions. [2021-06-10 12:24:44,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 64.44444444444444) internal successors, (580), 9 states have internal predecessors, (580), 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) [2021-06-10 12:24:44,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 76.0) internal successors, (760), 10 states have internal predecessors, (760), 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) [2021-06-10 12:24:44,932 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 76.0) internal successors, (760), 10 states have internal predecessors, (760), 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) [2021-06-10 12:24:44,933 INFO L185 Difference]: Start difference. First operand has 70 places, 61 transitions, 131 flow. Second operand 9 states and 580 transitions. [2021-06-10 12:24:44,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 84 transitions, 249 flow [2021-06-10 12:24:44,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 84 transitions, 246 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 12:24:44,938 INFO L241 Difference]: Finished difference. Result has 82 places, 60 transitions, 146 flow [2021-06-10 12:24:44,939 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=146, PETRI_PLACES=82, PETRI_TRANSITIONS=60} [2021-06-10 12:24:44,939 INFO L343 CegarLoopForPetriNet]: 70 programPoint places, 12 predicate places. [2021-06-10 12:24:44,939 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 60 transitions, 146 flow [2021-06-10 12:24:44,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 61.285714285714285) internal successors, (429), 7 states have internal predecessors, (429), 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) [2021-06-10 12:24:44,940 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:24:44,940 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:24:44,940 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 12:24:44,941 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:24:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:24:44,941 INFO L82 PathProgramCache]: Analyzing trace with hash 417553791, now seen corresponding path program 1 times [2021-06-10 12:24:44,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:24:44,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732111766] [2021-06-10 12:24:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:24:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:24:45,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:45,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:24:45,006 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 12:24:45,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:24:45,013 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:24:45,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:24:45,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:45,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:45,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:45,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:24:45,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732111766] [2021-06-10 12:24:45,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:24:45,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-10 12:24:45,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464823924] [2021-06-10 12:24:45,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-10 12:24:45,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:24:45,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-10 12:24:45,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-10 12:24:45,055 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 76 [2021-06-10 12:24:45,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 60 transitions, 146 flow. Second operand has 7 states, 7 states have (on average 61.42857142857143) internal successors, (430), 7 states have internal predecessors, (430), 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) [2021-06-10 12:24:45,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:24:45,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 76 [2021-06-10 12:24:45,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:24:45,170 INFO L129 PetriNetUnfolder]: 24/150 cut-off events. [2021-06-10 12:24:45,170 INFO L130 PetriNetUnfolder]: For 37/49 co-relation queries the response was YES. [2021-06-10 12:24:45,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 150 events. 24/150 cut-off events. For 37/49 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 465 event pairs, 1 based on Foata normal form. 4/147 useless extension candidates. Maximal degree in co-relation 246. Up to 24 conditions per place. [2021-06-10 12:24:45,173 INFO L132 encePairwiseOnDemand]: 69/76 looper letters, 11 selfloop transitions, 3 changer transitions 16/78 dead transitions. [2021-06-10 12:24:45,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 78 transitions, 263 flow [2021-06-10 12:24:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:24:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:24:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 632 transitions. [2021-06-10 12:24:45,175 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8315789473684211 [2021-06-10 12:24:45,176 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 632 transitions. [2021-06-10 12:24:45,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 632 transitions. [2021-06-10 12:24:45,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:24:45,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 632 transitions. [2021-06-10 12:24:45,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 63.2) internal successors, (632), 10 states have internal predecessors, (632), 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) [2021-06-10 12:24:45,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 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) [2021-06-10 12:24:45,179 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 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) [2021-06-10 12:24:45,179 INFO L185 Difference]: Start difference. First operand has 82 places, 60 transitions, 146 flow. Second operand 10 states and 632 transitions. [2021-06-10 12:24:45,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 78 transitions, 263 flow [2021-06-10 12:24:45,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 229 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-06-10 12:24:45,183 INFO L241 Difference]: Finished difference. Result has 84 places, 60 transitions, 152 flow [2021-06-10 12:24:45,183 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=152, PETRI_PLACES=84, PETRI_TRANSITIONS=60} [2021-06-10 12:24:45,183 INFO L343 CegarLoopForPetriNet]: 70 programPoint places, 14 predicate places. [2021-06-10 12:24:45,183 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 60 transitions, 152 flow [2021-06-10 12:24:45,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 61.42857142857143) internal successors, (430), 7 states have internal predecessors, (430), 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) [2021-06-10 12:24:45,184 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:24:45,184 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:24:45,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 12:24:45,185 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:24:45,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:24:45,187 INFO L82 PathProgramCache]: Analyzing trace with hash -929171362, now seen corresponding path program 1 times [2021-06-10 12:24:45,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:24:45,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866395621] [2021-06-10 12:24:45,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:24:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:24:45,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:45,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:24:45,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:24:45,239 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 12:24:45,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:24:45,246 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:24:45,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:24:45,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:45,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:45,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:45,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:24:45,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866395621] [2021-06-10 12:24:45,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:24:45,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-10 12:24:45,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461206820] [2021-06-10 12:24:45,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 12:24:45,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:24:45,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 12:24:45,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-10 12:24:45,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-06-10 12:24:45,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 60 transitions, 152 flow. Second operand has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 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) [2021-06-10 12:24:45,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:24:45,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-06-10 12:24:45,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:24:45,450 INFO L129 PetriNetUnfolder]: 29/153 cut-off events. [2021-06-10 12:24:45,450 INFO L130 PetriNetUnfolder]: For 44/88 co-relation queries the response was YES. [2021-06-10 12:24:45,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 153 events. 29/153 cut-off events. For 44/88 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 505 event pairs, 5 based on Foata normal form. 4/151 useless extension candidates. Maximal degree in co-relation 276. Up to 20 conditions per place. [2021-06-10 12:24:45,451 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 12 selfloop transitions, 4 changer transitions 18/80 dead transitions. [2021-06-10 12:24:45,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 80 transitions, 285 flow [2021-06-10 12:24:45,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 12:24:45,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 12:24:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 616 transitions. [2021-06-10 12:24:45,453 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8105263157894737 [2021-06-10 12:24:45,453 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 616 transitions. [2021-06-10 12:24:45,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 616 transitions. [2021-06-10 12:24:45,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:24:45,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 616 transitions. [2021-06-10 12:24:45,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 61.6) internal successors, (616), 10 states have internal predecessors, (616), 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) [2021-06-10 12:24:45,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 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) [2021-06-10 12:24:45,456 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 76.0) internal successors, (836), 11 states have internal predecessors, (836), 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) [2021-06-10 12:24:45,456 INFO L185 Difference]: Start difference. First operand has 84 places, 60 transitions, 152 flow. Second operand 10 states and 616 transitions. [2021-06-10 12:24:45,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 80 transitions, 285 flow [2021-06-10 12:24:45,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 80 transitions, 251 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-06-10 12:24:45,458 INFO L241 Difference]: Finished difference. Result has 86 places, 60 transitions, 164 flow [2021-06-10 12:24:45,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=164, PETRI_PLACES=86, PETRI_TRANSITIONS=60} [2021-06-10 12:24:45,458 INFO L343 CegarLoopForPetriNet]: 70 programPoint places, 16 predicate places. [2021-06-10 12:24:45,458 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 60 transitions, 164 flow [2021-06-10 12:24:45,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 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) [2021-06-10 12:24:45,459 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:24:45,459 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:24:45,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 12:24:45,459 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:24:45,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:24:45,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1957553368, now seen corresponding path program 1 times [2021-06-10 12:24:45,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:24:45,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211953032] [2021-06-10 12:24:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:24:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:24:45,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:45,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:24:45,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:24:45,511 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 12:24:45,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:24:45,517 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:24:45,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:24:45,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:45,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:45,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:45,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:24:45,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211953032] [2021-06-10 12:24:45,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:24:45,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-10 12:24:45,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525631554] [2021-06-10 12:24:45,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 12:24:45,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:24:45,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 12:24:45,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-10 12:24:45,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-06-10 12:24:45,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 60 transitions, 164 flow. Second operand has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 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) [2021-06-10 12:24:45,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:24:45,547 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-06-10 12:24:45,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:24:45,654 INFO L129 PetriNetUnfolder]: 11/103 cut-off events. [2021-06-10 12:24:45,654 INFO L130 PetriNetUnfolder]: For 58/68 co-relation queries the response was YES. [2021-06-10 12:24:45,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 103 events. 11/103 cut-off events. For 58/68 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 258 event pairs, 2 based on Foata normal form. 5/106 useless extension candidates. Maximal degree in co-relation 203. Up to 10 conditions per place. [2021-06-10 12:24:45,655 INFO L132 encePairwiseOnDemand]: 67/76 looper letters, 9 selfloop transitions, 5 changer transitions 18/77 dead transitions. [2021-06-10 12:24:45,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 77 transitions, 301 flow [2021-06-10 12:24:45,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-10 12:24:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-10 12:24:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 671 transitions. [2021-06-10 12:24:45,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8026315789473685 [2021-06-10 12:24:45,657 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 671 transitions. [2021-06-10 12:24:45,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 671 transitions. [2021-06-10 12:24:45,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:24:45,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 671 transitions. [2021-06-10 12:24:45,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 61.0) internal successors, (671), 11 states have internal predecessors, (671), 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) [2021-06-10 12:24:45,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 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) [2021-06-10 12:24:45,660 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 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) [2021-06-10 12:24:45,660 INFO L185 Difference]: Start difference. First operand has 86 places, 60 transitions, 164 flow. Second operand 11 states and 671 transitions. [2021-06-10 12:24:45,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 77 transitions, 301 flow [2021-06-10 12:24:45,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 77 transitions, 238 flow, removed 23 selfloop flow, removed 11 redundant places. [2021-06-10 12:24:45,662 INFO L241 Difference]: Finished difference. Result has 87 places, 59 transitions, 164 flow [2021-06-10 12:24:45,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=164, PETRI_PLACES=87, PETRI_TRANSITIONS=59} [2021-06-10 12:24:45,665 INFO L343 CegarLoopForPetriNet]: 70 programPoint places, 17 predicate places. [2021-06-10 12:24:45,665 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 59 transitions, 164 flow [2021-06-10 12:24:45,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 59.5) internal successors, (476), 8 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) [2021-06-10 12:24:45,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 12:24:45,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 12:24:45,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 12:24:45,665 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 12:24:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 12:24:45,665 INFO L82 PathProgramCache]: Analyzing trace with hash 535580645, now seen corresponding path program 1 times [2021-06-10 12:24:45,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 12:24:45,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010047563] [2021-06-10 12:24:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 12:24:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 12:24:45,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:45,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:24:45,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 12:24:45,740 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 12:24:45,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 12:24:45,747 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-10 12:24:45,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-10 12:24:45,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:45,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 12:24:45,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 12:24:45,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 12:24:45,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 12:24:45,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010047563] [2021-06-10 12:24:45,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 12:24:45,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-10 12:24:45,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698181324] [2021-06-10 12:24:45,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-10 12:24:45,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 12:24:45,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-10 12:24:45,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-10 12:24:45,782 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 76 [2021-06-10 12:24:45,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 59 transitions, 164 flow. Second operand has 8 states, 8 states have (on average 59.625) internal successors, (477), 8 states have internal predecessors, (477), 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) [2021-06-10 12:24:45,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 12:24:45,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 76 [2021-06-10 12:24:45,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 12:24:45,878 INFO L129 PetriNetUnfolder]: 4/65 cut-off events. [2021-06-10 12:24:45,878 INFO L130 PetriNetUnfolder]: For 23/24 co-relation queries the response was YES. [2021-06-10 12:24:45,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 65 events. 4/65 cut-off events. For 23/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 2/67 useless extension candidates. Maximal degree in co-relation 117. Up to 5 conditions per place. [2021-06-10 12:24:45,879 INFO L132 encePairwiseOnDemand]: 68/76 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2021-06-10 12:24:45,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 64 transitions, 224 flow [2021-06-10 12:24:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-10 12:24:45,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-10 12:24:45,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 660 transitions. [2021-06-10 12:24:45,880 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7894736842105263 [2021-06-10 12:24:45,880 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 660 transitions. [2021-06-10 12:24:45,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 660 transitions. [2021-06-10 12:24:45,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 12:24:45,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 660 transitions. [2021-06-10 12:24:45,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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) [2021-06-10 12:24:45,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 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) [2021-06-10 12:24:45,883 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 76.0) internal successors, (912), 12 states have internal predecessors, (912), 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) [2021-06-10 12:24:45,883 INFO L185 Difference]: Start difference. First operand has 87 places, 59 transitions, 164 flow. Second operand 11 states and 660 transitions. [2021-06-10 12:24:45,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 64 transitions, 224 flow [2021-06-10 12:24:45,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 64 transitions, 188 flow, removed 12 selfloop flow, removed 9 redundant places. [2021-06-10 12:24:45,885 INFO L241 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2021-06-10 12:24:45,885 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2021-06-10 12:24:45,885 INFO L343 CegarLoopForPetriNet]: 70 programPoint places, 9 predicate places. [2021-06-10 12:24:45,885 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2021-06-10 12:24:45,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 59.625) internal successors, (477), 8 states have internal predecessors, (477), 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) [2021-06-10 12:24:45,886 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 12:24:45,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 12:24:45 BasicIcfg [2021-06-10 12:24:45,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 12:24:45,890 INFO L168 Benchmark]: Toolchain (without parser) took 2389.30 ms. Allocated memory is still 356.5 MB. Free memory was 318.5 MB in the beginning and 225.6 MB in the end (delta: 92.9 MB). Peak memory consumption was 93.5 MB. Max. memory is 16.0 GB. [2021-06-10 12:24:45,890 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 356.5 MB. Free memory is still 336.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 12:24:45,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.88 ms. Allocated memory is still 356.5 MB. Free memory was 318.3 MB in the beginning and 318.4 MB in the end (delta: -83.6 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-10 12:24:45,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 356.5 MB. Free memory was 318.4 MB in the beginning and 316.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:24:45,894 INFO L168 Benchmark]: Boogie Preprocessor took 13.59 ms. Allocated memory is still 356.5 MB. Free memory was 316.3 MB in the beginning and 315.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 12:24:45,894 INFO L168 Benchmark]: RCFGBuilder took 299.58 ms. Allocated memory is still 356.5 MB. Free memory was 315.3 MB in the beginning and 290.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-10 12:24:45,894 INFO L168 Benchmark]: TraceAbstraction took 1623.29 ms. Allocated memory is still 356.5 MB. Free memory was 290.1 MB in the beginning and 225.6 MB in the end (delta: 64.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.0 GB. [2021-06-10 12:24:45,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 356.5 MB. Free memory is still 336.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 410.88 ms. Allocated memory is still 356.5 MB. Free memory was 318.3 MB in the beginning and 318.4 MB in the end (delta: -83.6 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 356.5 MB. Free memory was 318.4 MB in the beginning and 316.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.59 ms. Allocated memory is still 356.5 MB. Free memory was 316.3 MB in the beginning and 315.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 299.58 ms. Allocated memory is still 356.5 MB. Free memory was 315.3 MB in the beginning and 290.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1623.29 ms. Allocated memory is still 356.5 MB. Free memory was 290.1 MB in the beginning and 225.6 MB in the end (delta: 64.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1557.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 750.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 35.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 81 SDtfs, 160 SDslu, 248 SDs, 0 SdLazy, 150 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 525.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=3, InterpolantAutomatonStates: 51, 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: 11.3ms SsaConstructionTime, 113.8ms SatisfiabilityAnalysisTime, 521.2ms InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...