/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-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 11:14:00,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 11:14:00,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 11:14:00,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 11:14:00,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 11:14:00,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 11:14:00,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 11:14:00,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 11:14:00,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 11:14:00,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 11:14:00,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 11:14:00,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 11:14:00,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 11:14:00,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 11:14:00,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 11:14:00,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 11:14:00,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 11:14:00,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 11:14:00,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 11:14:00,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 11:14:00,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 11:14:00,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 11:14:00,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 11:14:00,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 11:14:00,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 11:14:00,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 11:14:00,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 11:14:00,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 11:14:00,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 11:14:00,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 11:14:00,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 11:14:00,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 11:14:00,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 11:14:00,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 11:14:00,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 11:14:00,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 11:14:00,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 11:14:00,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 11:14:00,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 11:14:00,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 11:14:00,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 11:14:00,607 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 11:14:00,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 11:14:00,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 11:14:00,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 11:14:00,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 11:14:00,648 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 11:14:00,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 11:14:00,649 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 11:14:00,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 11:14:00,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 11:14:00,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 11:14:00,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 11:14:00,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 11:14:00,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 11:14:00,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 11:14:00,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 11:14:00,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 11:14:00,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 11:14:00,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 11:14:00,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 11:14:00,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 11:14:00,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 11:14:00,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 11:14:00,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 11:14:00,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 11:14:00,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 11:14:00,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 11:14:00,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 11:14:00,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 11:14:00,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 11:14:00,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 11:14:00,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 11:14:00,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 11:14:00,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 11:14:00,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 11:14:00,986 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 11:14:00,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2021-06-10 11:14:01,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827e33021/b5459917dee84479804e57cfbd3b2536/FLAGf708ef3c7 [2021-06-10 11:14:01,561 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 11:14:01,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2021-06-10 11:14:01,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827e33021/b5459917dee84479804e57cfbd3b2536/FLAGf708ef3c7 [2021-06-10 11:14:01,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827e33021/b5459917dee84479804e57cfbd3b2536 [2021-06-10 11:14:01,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 11:14:01,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 11:14:01,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 11:14:01,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 11:14:01,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 11:14:01,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 11:14:01" (1/1) ... [2021-06-10 11:14:01,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@708eda08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:01, skipping insertion in model container [2021-06-10 11:14:01,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 11:14:01" (1/1) ... [2021-06-10 11:14:01,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 11:14:01,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 11:14:02,120 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 11:14:02,267 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-atomic/peterson.i[30997,31010] [2021-06-10 11:14:02,274 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-atomic/peterson.i[31682,31695] [2021-06-10 11:14:02,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 11:14:02,290 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 11:14:02,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-10 11:14:02,335 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-atomic/peterson.i[30997,31010] [2021-06-10 11:14:02,339 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-atomic/peterson.i[31682,31695] [2021-06-10 11:14:02,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 11:14:02,411 INFO L208 MainTranslator]: Completed translation [2021-06-10 11:14:02,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02 WrapperNode [2021-06-10 11:14:02,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 11:14:02,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 11:14:02,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 11:14:02,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 11:14:02,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 11:14:02,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 11:14:02,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 11:14:02,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 11:14:02,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (1/1) ... [2021-06-10 11:14:02,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 11:14:02,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 11:14:02,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 11:14:02,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 11:14:02,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (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 11:14:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-10 11:14:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-06-10 11:14:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-06-10 11:14:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-10 11:14:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-10 11:14:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 11:14:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 11:14:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 11:14:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 11:14:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 11:14:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 11:14:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 11:14:02,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 11:14:02,578 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 11:14:02,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 11:14:02,905 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-10 11:14:02,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:14:02 BoogieIcfgContainer [2021-06-10 11:14:02,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 11:14:02,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 11:14:02,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 11:14:02,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 11:14:02,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 11:14:01" (1/3) ... [2021-06-10 11:14:02,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121764d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 11:14:02, skipping insertion in model container [2021-06-10 11:14:02,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 11:14:02" (2/3) ... [2021-06-10 11:14:02,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121764d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 11:14:02, skipping insertion in model container [2021-06-10 11:14:02,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 11:14:02" (3/3) ... [2021-06-10 11:14:02,913 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2021-06-10 11:14:02,918 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 11:14:02,921 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-06-10 11:14:02,922 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 11:14:02,943 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,943 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,944 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,944 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,944 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,945 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,946 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,947 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,947 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,947 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,947 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,947 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,947 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,948 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,948 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,948 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,948 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,949 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,949 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,949 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,950 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,950 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,950 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,950 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,950 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,950 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,951 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,951 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,951 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,951 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,951 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,956 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,957 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,961 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,961 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,961 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,962 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,962 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,962 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 11:14:02,967 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-10 11:14:02,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-06-10 11:14:03,010 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 11:14:03,010 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 11:14:03,010 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 11:14:03,010 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 11:14:03,010 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 11:14:03,011 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 11:14:03,011 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 11:14:03,011 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 11:14:03,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 74 transitions, 170 flow [2021-06-10 11:14:03,068 INFO L129 PetriNetUnfolder]: 7/74 cut-off events. [2021-06-10 11:14:03,068 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-10 11:14:03,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 74 events. 7/74 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 47. Up to 3 conditions per place. [2021-06-10 11:14:03,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 74 transitions, 170 flow [2021-06-10 11:14:03,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 62 transitions, 136 flow [2021-06-10 11:14:03,100 INFO L129 PetriNetUnfolder]: 4/44 cut-off events. [2021-06-10 11:14:03,101 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 11:14:03,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:03,101 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] [2021-06-10 11:14:03,102 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 11:14:03,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:03,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1057410247, now seen corresponding path program 1 times [2021-06-10 11:14:03,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:03,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993848835] [2021-06-10 11:14:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:03,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:03,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:03,315 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 11:14:03,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993848835] [2021-06-10 11:14:03,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:03,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 11:14:03,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347893749] [2021-06-10 11:14:03,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-10 11:14:03,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:03,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-10 11:14:03,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-10 11:14:03,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 74 [2021-06-10 11:14:03,349 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 62 transitions, 136 flow. Second operand has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 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 11:14:03,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:03,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 74 [2021-06-10 11:14:03,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:03,374 INFO L129 PetriNetUnfolder]: 2/60 cut-off events. [2021-06-10 11:14:03,375 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-10 11:14:03,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 2/60 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2021-06-10 11:14:03,377 INFO L132 encePairwiseOnDemand]: 70/74 looper letters, 0 selfloop transitions, 0 changer transitions 0/58 dead transitions. [2021-06-10 11:14:03,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 58 transitions, 128 flow [2021-06-10 11:14:03,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-10 11:14:03,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-10 11:14:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 144 transitions. [2021-06-10 11:14:03,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.972972972972973 [2021-06-10 11:14:03,388 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 144 transitions. [2021-06-10 11:14:03,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 144 transitions. [2021-06-10 11:14:03,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:03,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 144 transitions. [2021-06-10 11:14:03,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 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 11:14:03,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 11:14:03,401 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 11:14:03,402 INFO L185 Difference]: Start difference. First operand has 62 places, 62 transitions, 136 flow. Second operand 2 states and 144 transitions. [2021-06-10 11:14:03,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 58 transitions, 128 flow [2021-06-10 11:14:03,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 58 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-10 11:14:03,411 INFO L241 Difference]: Finished difference. Result has 59 places, 58 transitions, 120 flow [2021-06-10 11:14:03,413 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=120, PETRI_PLACES=59, PETRI_TRANSITIONS=58} [2021-06-10 11:14:03,413 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2021-06-10 11:14:03,413 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 120 flow [2021-06-10 11:14:03,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 70.5) internal successors, (141), 2 states have internal predecessors, (141), 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 11:14:03,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:03,414 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] [2021-06-10 11:14:03,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 11:14:03,414 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 11:14:03,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:03,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1057440038, now seen corresponding path program 1 times [2021-06-10 11:14:03,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:03,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009213228] [2021-06-10 11:14:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:03,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:03,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:03,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:03,513 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 11:14:03,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009213228] [2021-06-10 11:14:03,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:03,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 11:14:03,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167685882] [2021-06-10 11:14:03,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 11:14:03,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:03,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 11:14:03,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 11:14:03,517 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 74 [2021-06-10 11:14:03,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 11:14:03,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:03,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 74 [2021-06-10 11:14:03,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:03,586 INFO L129 PetriNetUnfolder]: 9/115 cut-off events. [2021-06-10 11:14:03,586 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 11:14:03,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 115 events. 9/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 363 event pairs, 2 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 145. Up to 18 conditions per place. [2021-06-10 11:14:03,589 INFO L132 encePairwiseOnDemand]: 69/74 looper letters, 7 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2021-06-10 11:14:03,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 61 transitions, 146 flow [2021-06-10 11:14:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 11:14:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 11:14:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2021-06-10 11:14:03,596 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9054054054054054 [2021-06-10 11:14:03,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2021-06-10 11:14:03,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2021-06-10 11:14:03,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:03,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2021-06-10 11:14:03,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 11:14:03,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 11:14:03,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 11:14:03,601 INFO L185 Difference]: Start difference. First operand has 59 places, 58 transitions, 120 flow. Second operand 3 states and 201 transitions. [2021-06-10 11:14:03,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 61 transitions, 146 flow [2021-06-10 11:14:03,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 146 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 11:14:03,604 INFO L241 Difference]: Finished difference. Result has 63 places, 59 transitions, 140 flow [2021-06-10 11:14:03,604 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2021-06-10 11:14:03,605 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2021-06-10 11:14:03,605 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 140 flow [2021-06-10 11:14:03,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 11:14:03,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:03,605 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] [2021-06-10 11:14:03,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 11:14:03,606 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 11:14:03,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:03,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1056945993, now seen corresponding path program 1 times [2021-06-10 11:14:03,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:03,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332831859] [2021-06-10 11:14:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:03,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-10 11:14:03,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:03,687 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 11:14:03,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332831859] [2021-06-10 11:14:03,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:03,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 11:14:03,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119417146] [2021-06-10 11:14:03,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 11:14:03,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:03,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 11:14:03,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 11:14:03,689 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 74 [2021-06-10 11:14:03,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 11:14:03,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:03,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 74 [2021-06-10 11:14:03,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:03,736 INFO L129 PetriNetUnfolder]: 4/98 cut-off events. [2021-06-10 11:14:03,736 INFO L130 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2021-06-10 11:14:03,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 98 events. 4/98 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 268 event pairs, 2 based on Foata normal form. 6/100 useless extension candidates. Maximal degree in co-relation 138. Up to 11 conditions per place. [2021-06-10 11:14:03,737 INFO L132 encePairwiseOnDemand]: 70/74 looper letters, 6 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2021-06-10 11:14:03,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 156 flow [2021-06-10 11:14:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 11:14:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 11:14:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2021-06-10 11:14:03,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8963963963963963 [2021-06-10 11:14:03,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 199 transitions. [2021-06-10 11:14:03,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 199 transitions. [2021-06-10 11:14:03,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:03,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 199 transitions. [2021-06-10 11:14:03,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 11:14:03,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 11:14:03,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 11:14:03,747 INFO L185 Difference]: Start difference. First operand has 63 places, 59 transitions, 140 flow. Second operand 3 states and 199 transitions. [2021-06-10 11:14:03,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 156 flow [2021-06-10 11:14:03,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 11:14:03,751 INFO L241 Difference]: Finished difference. Result has 64 places, 59 transitions, 144 flow [2021-06-10 11:14:03,752 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=64, PETRI_TRANSITIONS=59} [2021-06-10 11:14:03,752 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2021-06-10 11:14:03,752 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 144 flow [2021-06-10 11:14:03,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 11:14:03,752 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:03,752 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] [2021-06-10 11:14:03,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 11:14:03,753 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 11:14:03,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:03,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1604299747, now seen corresponding path program 1 times [2021-06-10 11:14:03,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:03,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608706972] [2021-06-10 11:14:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:03,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:03,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:03,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 11:14:03,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 11:14:03,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 11:14:03,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:03,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:03,858 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 11:14:03,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608706972] [2021-06-10 11:14:03,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:03,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 11:14:03,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408650994] [2021-06-10 11:14:03,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 11:14:03,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:03,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 11:14:03,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-10 11:14:03,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 74 [2021-06-10 11:14:03,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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 11:14:03,861 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:03,861 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 74 [2021-06-10 11:14:03,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:04,060 INFO L129 PetriNetUnfolder]: 70/305 cut-off events. [2021-06-10 11:14:04,060 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-06-10 11:14:04,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 305 events. 70/305 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1520 event pairs, 8 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 491. Up to 48 conditions per place. [2021-06-10 11:14:04,063 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 24 selfloop transitions, 13 changer transitions 16/97 dead transitions. [2021-06-10 11:14:04,063 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 97 transitions, 327 flow [2021-06-10 11:14:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 11:14:04,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 11:14:04,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 607 transitions. [2021-06-10 11:14:04,065 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8202702702702702 [2021-06-10 11:14:04,066 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 607 transitions. [2021-06-10 11:14:04,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 607 transitions. [2021-06-10 11:14:04,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:04,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 607 transitions. [2021-06-10 11:14:04,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 60.7) internal successors, (607), 10 states have internal predecessors, (607), 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 11:14:04,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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 11:14:04,071 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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 11:14:04,071 INFO L185 Difference]: Start difference. First operand has 64 places, 59 transitions, 144 flow. Second operand 10 states and 607 transitions. [2021-06-10 11:14:04,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 97 transitions, 327 flow [2021-06-10 11:14:04,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 97 transitions, 325 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 11:14:04,074 INFO L241 Difference]: Finished difference. Result has 81 places, 71 transitions, 250 flow [2021-06-10 11:14:04,074 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=250, PETRI_PLACES=81, PETRI_TRANSITIONS=71} [2021-06-10 11:14:04,074 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 19 predicate places. [2021-06-10 11:14:04,074 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 71 transitions, 250 flow [2021-06-10 11:14:04,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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 11:14:04,075 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 11:14:04,075 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] [2021-06-10 11:14:04,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 11:14:04,075 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 11:14:04,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 11:14:04,075 INFO L82 PathProgramCache]: Analyzing trace with hash 410427891, now seen corresponding path program 2 times [2021-06-10 11:14:04,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 11:14:04,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554532937] [2021-06-10 11:14:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 11:14:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 11:14:04,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:04,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:04,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:04,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 11:14:04,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:04,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 11:14:04,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:04,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 11:14:04,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:04,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-10 11:14:04,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 11:14:04,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 11:14:04,133 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 11:14:04,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554532937] [2021-06-10 11:14:04,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 11:14:04,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-10 11:14:04,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642369688] [2021-06-10 11:14:04,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 11:14:04,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 11:14:04,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 11:14:04,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-10 11:14:04,136 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 74 [2021-06-10 11:14:04,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 71 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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 11:14:04,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 11:14:04,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 74 [2021-06-10 11:14:04,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 11:14:04,297 INFO L129 PetriNetUnfolder]: 76/273 cut-off events. [2021-06-10 11:14:04,297 INFO L130 PetriNetUnfolder]: For 186/207 co-relation queries the response was YES. [2021-06-10 11:14:04,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 273 events. 76/273 cut-off events. For 186/207 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1168 event pairs, 0 based on Foata normal form. 8/272 useless extension candidates. Maximal degree in co-relation 665. Up to 48 conditions per place. [2021-06-10 11:14:04,300 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2021-06-10 11:14:04,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 104 transitions, 492 flow [2021-06-10 11:14:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-10 11:14:04,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-10 11:14:04,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 602 transitions. [2021-06-10 11:14:04,302 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8135135135135135 [2021-06-10 11:14:04,303 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 602 transitions. [2021-06-10 11:14:04,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 602 transitions. [2021-06-10 11:14:04,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 11:14:04,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 602 transitions. [2021-06-10 11:14:04,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 60.2) internal successors, (602), 10 states have internal predecessors, (602), 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 11:14:04,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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 11:14:04,311 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 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 11:14:04,311 INFO L185 Difference]: Start difference. First operand has 81 places, 71 transitions, 250 flow. Second operand 10 states and 602 transitions. [2021-06-10 11:14:04,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 104 transitions, 492 flow [2021-06-10 11:14:04,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 104 transitions, 462 flow, removed 14 selfloop flow, removed 3 redundant places. [2021-06-10 11:14:04,319 INFO L241 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2021-06-10 11:14:04,319 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2021-06-10 11:14:04,319 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 19 predicate places. [2021-06-10 11:14:04,319 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2021-06-10 11:14:04,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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 11:14:04,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 11:14:04,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 11:14:04 BasicIcfg [2021-06-10 11:14:04,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 11:14:04,325 INFO L168 Benchmark]: Toolchain (without parser) took 2439.64 ms. Allocated memory is still 367.0 MB. Free memory was 329.2 MB in the beginning and 162.1 MB in the end (delta: 167.1 MB). Peak memory consumption was 166.9 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:04,327 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 367.0 MB. Free memory is still 347.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 11:14:04,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.08 ms. Allocated memory is still 367.0 MB. Free memory was 329.0 MB in the beginning and 329.9 MB in the end (delta: -863.0 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:04,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.85 ms. Allocated memory is still 367.0 MB. Free memory was 329.9 MB in the beginning and 327.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:04,332 INFO L168 Benchmark]: Boogie Preprocessor took 31.92 ms. Allocated memory is still 367.0 MB. Free memory was 327.8 MB in the beginning and 326.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 11:14:04,332 INFO L168 Benchmark]: RCFGBuilder took 409.77 ms. Allocated memory is still 367.0 MB. Free memory was 326.8 MB in the beginning and 303.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:04,333 INFO L168 Benchmark]: TraceAbstraction took 1416.02 ms. Allocated memory is still 367.0 MB. Free memory was 302.6 MB in the beginning and 162.1 MB in the end (delta: 140.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 16.0 GB. [2021-06-10 11:14:04,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 367.0 MB. Free memory is still 347.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 526.08 ms. Allocated memory is still 367.0 MB. Free memory was 329.0 MB in the beginning and 329.9 MB in the end (delta: -863.0 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.85 ms. Allocated memory is still 367.0 MB. Free memory was 329.9 MB in the beginning and 327.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.92 ms. Allocated memory is still 367.0 MB. Free memory was 327.8 MB in the beginning and 326.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 409.77 ms. Allocated memory is still 367.0 MB. Free memory was 326.8 MB in the beginning and 303.7 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1416.02 ms. Allocated memory is still 367.0 MB. Free memory was 302.6 MB in the beginning and 162.1 MB in the end (delta: 140.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 17.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1315.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 628.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 71.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 69 SDtfs, 59 SDslu, 57 SDs, 0 SdLazy, 188 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 149.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 126.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.4ms SsaConstructionTime, 91.5ms SatisfiabilityAnalysisTime, 305.8ms InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...