/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 21:21:33,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 21:21:33,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 21:21:33,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 21:21:33,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 21:21:33,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 21:21:33,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 21:21:33,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 21:21:33,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 21:21:33,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 21:21:33,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 21:21:33,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 21:21:33,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 21:21:33,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 21:21:33,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 21:21:33,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 21:21:33,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 21:21:33,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 21:21:33,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 21:21:33,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 21:21:33,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 21:21:33,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 21:21:33,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 21:21:33,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 21:21:33,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 21:21:33,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 21:21:33,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 21:21:33,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 21:21:33,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 21:21:33,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 21:21:33,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 21:21:33,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 21:21:33,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 21:21:33,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 21:21:33,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 21:21:33,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 21:21:33,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 21:21:33,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 21:21:33,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 21:21:33,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 21:21:33,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 21:21:33,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-06-10 21:21:33,986 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 21:21:33,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 21:21:33,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 21:21:33,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 21:21:33,989 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 21:21:33,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 21:21:33,989 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 21:21:33,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 21:21:33,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 21:21:33,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 21:21:33,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 21:21:33,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 21:21:33,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 21:21:33,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 21:21:33,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 21:21:33,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 21:21:33,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 21:21:33,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:21:33,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 21:21:33,991 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 21:21:33,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 21:21:34,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 21:21:34,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 21:21:34,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 21:21:34,210 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 21:21:34,211 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 21:21:34,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2021-06-10 21:21:34,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2bd46e2c/0f04e97997144fc4a9b2dc22dd7299d8/FLAG8b0c27c51 [2021-06-10 21:21:34,661 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 21:21:34,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2021-06-10 21:21:34,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2bd46e2c/0f04e97997144fc4a9b2dc22dd7299d8/FLAG8b0c27c51 [2021-06-10 21:21:35,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2bd46e2c/0f04e97997144fc4a9b2dc22dd7299d8 [2021-06-10 21:21:35,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 21:21:35,030 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 21:21:35,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 21:21:35,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 21:21:35,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 21:21:35,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd8fe76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35, skipping insertion in model container [2021-06-10 21:21:35,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 21:21:35,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 21:21:35,175 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/safe018_tso.oepc.i[950,963] [2021-06-10 21:21:35,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:21:35,331 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 21:21:35,339 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-wmm/safe018_tso.oepc.i[950,963] [2021-06-10 21:21:35,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:21:35,415 INFO L208 MainTranslator]: Completed translation [2021-06-10 21:21:35,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35 WrapperNode [2021-06-10 21:21:35,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 21:21:35,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 21:21:35,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 21:21:35,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 21:21:35,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 21:21:35,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 21:21:35,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 21:21:35,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 21:21:35,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... [2021-06-10 21:21:35,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 21:21:35,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 21:21:35,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 21:21:35,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 21:21:35,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:21:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 21:21:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 21:21:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 21:21:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 21:21:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 21:21:35,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 21:21:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 21:21:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 21:21:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 21:21:35,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 21:21:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 21:21:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 21:21:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 21:21:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 21:21:35,575 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 21:21:35,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 21:21:35,799 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-10 21:21:35,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:21:35 BoogieIcfgContainer [2021-06-10 21:21:35,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 21:21:35,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 21:21:35,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 21:21:35,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 21:21:35,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 09:21:35" (1/3) ... [2021-06-10 21:21:35,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34239121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:21:35, skipping insertion in model container [2021-06-10 21:21:35,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:21:35" (2/3) ... [2021-06-10 21:21:35,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34239121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:21:35, skipping insertion in model container [2021-06-10 21:21:35,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:21:35" (3/3) ... [2021-06-10 21:21:35,804 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2021-06-10 21:21:35,808 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 21:21:35,811 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 21:21:35,811 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 21:21:35,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,832 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,832 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,835 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,835 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,842 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,842 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:21:35,843 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 21:21:35,855 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-10 21:21:35,867 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 21:21:35,867 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 21:21:35,867 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 21:21:35,868 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 21:21:35,868 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 21:21:35,868 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 21:21:35,868 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 21:21:35,868 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 21:21:35,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-06-10 21:21:35,898 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-06-10 21:21:35,898 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:21:35,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-06-10 21:21:35,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-06-10 21:21:35,903 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-06-10 21:21:35,904 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 21:21:35,913 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-06-10 21:21:35,915 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-06-10 21:21:35,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-06-10 21:21:35,926 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-06-10 21:21:35,927 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:21:35,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-06-10 21:21:35,929 INFO L151 LiptonReduction]: Number of co-enabled transitions 804 [2021-06-10 21:21:35,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:35,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:21:36,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:36,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:21:36,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:21:36,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:36,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:21:36,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:21:36,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:36,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:21:36,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:21:36,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:36,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:21:36,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:21:36,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 21:21:36,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:21:36,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,699 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-10 21:21:36,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-10 21:21:36,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:21:36,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:21:36,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:36,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:36,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:37,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:37,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:37,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:37,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:37,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:37,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:37,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:37,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:37,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:37,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:37,603 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-06-10 21:21:37,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:37,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:21:37,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:37,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:37,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 21:21:37,807 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-10 21:21:38,004 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-10 21:21:38,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:21:38,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:21:38,085 INFO L163 LiptonReduction]: Checked pairs total: 1512 [2021-06-10 21:21:38,085 INFO L165 LiptonReduction]: Total number of compositions: 46 [2021-06-10 21:21:38,087 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2184 [2021-06-10 21:21:38,096 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-06-10 21:21:38,096 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:21:38,096 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:38,097 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:38,097 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:38,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:38,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1477298609, now seen corresponding path program 1 times [2021-06-10 21:21:38,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:38,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803693128] [2021-06-10 21:21:38,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:38,273 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:21:38,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,280 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 21:21:38,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803693128] [2021-06-10 21:21:38,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:38,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 21:21:38,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550668554] [2021-06-10 21:21:38,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 21:21:38,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:38,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 21:21:38,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 21:21:38,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 120 [2021-06-10 21:21:38,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 21:21:38,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:38,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 120 [2021-06-10 21:21:38,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:38,316 INFO L129 PetriNetUnfolder]: 7/37 cut-off events. [2021-06-10 21:21:38,316 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:21:38,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 37 events. 7/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 92 event pairs, 5 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 56. Up to 18 conditions per place. [2021-06-10 21:21:38,317 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 4 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2021-06-10 21:21:38,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 59 flow [2021-06-10 21:21:38,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 21:21:38,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 21:21:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2021-06-10 21:21:38,329 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7972222222222223 [2021-06-10 21:21:38,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2021-06-10 21:21:38,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2021-06-10 21:21:38,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:38,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2021-06-10 21:21:38,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 21:21:38,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 21:21:38,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 21:21:38,343 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 287 transitions. [2021-06-10 21:21:38,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 59 flow [2021-06-10 21:21:38,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 56 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 21:21:38,345 INFO L241 Difference]: Finished difference. Result has 26 places, 18 transitions, 57 flow [2021-06-10 21:21:38,346 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2021-06-10 21:21:38,347 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2021-06-10 21:21:38,347 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2021-06-10 21:21:38,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 21:21:38,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:38,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:38,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 21:21:38,347 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:38,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:38,348 INFO L82 PathProgramCache]: Analyzing trace with hash -585248941, now seen corresponding path program 1 times [2021-06-10 21:21:38,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:38,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114083901] [2021-06-10 21:21:38,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:38,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,402 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:21:38,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:21:38,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114083901] [2021-06-10 21:21:38,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:38,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:21:38,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285716631] [2021-06-10 21:21:38,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:21:38,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:38,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:21:38,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:21:38,410 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 120 [2021-06-10 21:21:38,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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 21:21:38,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:38,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 120 [2021-06-10 21:21:38,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:38,435 INFO L129 PetriNetUnfolder]: 14/51 cut-off events. [2021-06-10 21:21:38,436 INFO L130 PetriNetUnfolder]: For 13/21 co-relation queries the response was YES. [2021-06-10 21:21:38,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 51 events. 14/51 cut-off events. For 13/21 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 142 event pairs, 1 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 104. Up to 17 conditions per place. [2021-06-10 21:21:38,436 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 7 selfloop transitions, 8 changer transitions 0/25 dead transitions. [2021-06-10 21:21:38,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 25 transitions, 107 flow [2021-06-10 21:21:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:21:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:21:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 456 transitions. [2021-06-10 21:21:38,440 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.76 [2021-06-10 21:21:38,440 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 456 transitions. [2021-06-10 21:21:38,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 456 transitions. [2021-06-10 21:21:38,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:38,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 456 transitions. [2021-06-10 21:21:38,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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 21:21:38,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 21:21:38,443 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 21:21:38,443 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 5 states and 456 transitions. [2021-06-10 21:21:38,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 25 transitions, 107 flow [2021-06-10 21:21:38,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 21:21:38,444 INFO L241 Difference]: Finished difference. Result has 32 places, 23 transitions, 109 flow [2021-06-10 21:21:38,444 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2021-06-10 21:21:38,444 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2021-06-10 21:21:38,444 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 109 flow [2021-06-10 21:21:38,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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 21:21:38,445 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:38,445 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:38,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 21:21:38,445 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:38,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:38,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1448382884, now seen corresponding path program 1 times [2021-06-10 21:21:38,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:38,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344761209] [2021-06-10 21:21:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:38,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,492 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:21:38,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,500 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 21:21:38,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344761209] [2021-06-10 21:21:38,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:38,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:21:38,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763861608] [2021-06-10 21:21:38,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:21:38,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:38,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:21:38,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:21:38,503 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 120 [2021-06-10 21:21:38,503 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 21:21:38,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:38,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 120 [2021-06-10 21:21:38,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:38,514 INFO L129 PetriNetUnfolder]: 6/35 cut-off events. [2021-06-10 21:21:38,514 INFO L130 PetriNetUnfolder]: For 42/57 co-relation queries the response was YES. [2021-06-10 21:21:38,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 35 events. 6/35 cut-off events. For 42/57 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 78 event pairs, 1 based on Foata normal form. 4/39 useless extension candidates. Maximal degree in co-relation 97. Up to 15 conditions per place. [2021-06-10 21:21:38,515 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 7 selfloop transitions, 4 changer transitions 0/23 dead transitions. [2021-06-10 21:21:38,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 131 flow [2021-06-10 21:21:38,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 21:21:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 21:21:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2021-06-10 21:21:38,516 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7944444444444444 [2021-06-10 21:21:38,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2021-06-10 21:21:38,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2021-06-10 21:21:38,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:38,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2021-06-10 21:21:38,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 21:21:38,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 21:21:38,518 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 21:21:38,518 INFO L185 Difference]: Start difference. First operand has 32 places, 23 transitions, 109 flow. Second operand 3 states and 286 transitions. [2021-06-10 21:21:38,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 131 flow [2021-06-10 21:21:38,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 23 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 21:21:38,519 INFO L241 Difference]: Finished difference. Result has 34 places, 23 transitions, 120 flow [2021-06-10 21:21:38,519 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2021-06-10 21:21:38,520 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2021-06-10 21:21:38,520 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 120 flow [2021-06-10 21:21:38,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 21:21:38,520 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:38,520 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:38,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 21:21:38,520 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:38,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:38,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1933085481, now seen corresponding path program 1 times [2021-06-10 21:21:38,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:38,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511026466] [2021-06-10 21:21:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:38,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,563 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:21:38,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,569 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 21:21:38,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511026466] [2021-06-10 21:21:38,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:38,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:21:38,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183435338] [2021-06-10 21:21:38,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:21:38,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:38,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:21:38,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:21:38,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 120 [2021-06-10 21:21:38,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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 21:21:38,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:38,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 120 [2021-06-10 21:21:38,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:38,592 INFO L129 PetriNetUnfolder]: 5/35 cut-off events. [2021-06-10 21:21:38,592 INFO L130 PetriNetUnfolder]: For 79/92 co-relation queries the response was YES. [2021-06-10 21:21:38,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 35 events. 5/35 cut-off events. For 79/92 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 1 based on Foata normal form. 5/40 useless extension candidates. Maximal degree in co-relation 102. Up to 13 conditions per place. [2021-06-10 21:21:38,592 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 3 selfloop transitions, 3 changer transitions 9/25 dead transitions. [2021-06-10 21:21:38,592 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 25 transitions, 162 flow [2021-06-10 21:21:38,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:21:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:21:38,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2021-06-10 21:21:38,595 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75625 [2021-06-10 21:21:38,596 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 363 transitions. [2021-06-10 21:21:38,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 363 transitions. [2021-06-10 21:21:38,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:38,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 363 transitions. [2021-06-10 21:21:38,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:38,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:38,598 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:38,598 INFO L185 Difference]: Start difference. First operand has 34 places, 23 transitions, 120 flow. Second operand 4 states and 363 transitions. [2021-06-10 21:21:38,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 25 transitions, 162 flow [2021-06-10 21:21:38,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 25 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 21:21:38,599 INFO L241 Difference]: Finished difference. Result has 37 places, 16 transitions, 82 flow [2021-06-10 21:21:38,599 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=37, PETRI_TRANSITIONS=16} [2021-06-10 21:21:38,599 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-06-10 21:21:38,599 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 16 transitions, 82 flow [2021-06-10 21:21:38,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 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 21:21:38,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:38,600 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:38,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 21:21:38,600 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:38,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:38,600 INFO L82 PathProgramCache]: Analyzing trace with hash 326502921, now seen corresponding path program 1 times [2021-06-10 21:21:38,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:38,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684904591] [2021-06-10 21:21:38,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:38,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,658 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:21:38,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,664 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 21:21:38,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684904591] [2021-06-10 21:21:38,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:38,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:21:38,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038816031] [2021-06-10 21:21:38,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:21:38,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:38,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:21:38,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:21:38,669 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 120 [2021-06-10 21:21:38,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 16 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:38,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:38,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 120 [2021-06-10 21:21:38,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:38,693 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-06-10 21:21:38,693 INFO L130 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2021-06-10 21:21:38,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 32 events. 3/32 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 64 event pairs, 1 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 96. Up to 9 conditions per place. [2021-06-10 21:21:38,694 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 3 selfloop transitions, 3 changer transitions 5/21 dead transitions. [2021-06-10 21:21:38,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 21 transitions, 144 flow [2021-06-10 21:21:38,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:21:38,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:21:38,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2021-06-10 21:21:38,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7520833333333333 [2021-06-10 21:21:38,695 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 361 transitions. [2021-06-10 21:21:38,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 361 transitions. [2021-06-10 21:21:38,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:38,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 361 transitions. [2021-06-10 21:21:38,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 21:21:38,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:38,697 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:38,697 INFO L185 Difference]: Start difference. First operand has 37 places, 16 transitions, 82 flow. Second operand 4 states and 361 transitions. [2021-06-10 21:21:38,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 21 transitions, 144 flow [2021-06-10 21:21:38,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 87 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-06-10 21:21:38,700 INFO L241 Difference]: Finished difference. Result has 30 places, 16 transitions, 62 flow [2021-06-10 21:21:38,700 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=16} [2021-06-10 21:21:38,700 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2021-06-10 21:21:38,700 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 62 flow [2021-06-10 21:21:38,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:38,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:38,701 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:38,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 21:21:38,701 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:38,702 INFO L82 PathProgramCache]: Analyzing trace with hash 132223153, now seen corresponding path program 1 times [2021-06-10 21:21:38,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:38,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111703534] [2021-06-10 21:21:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:38,751 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-10 21:21:38,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:21:38,754 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 21:21:38,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,760 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 21:21:38,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111703534] [2021-06-10 21:21:38,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:38,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:21:38,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654293127] [2021-06-10 21:21:38,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:21:38,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:38,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:21:38,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:21:38,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 120 [2021-06-10 21:21:38,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 21:21:38,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:38,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 120 [2021-06-10 21:21:38,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:38,791 INFO L129 PetriNetUnfolder]: 32/75 cut-off events. [2021-06-10 21:21:38,791 INFO L130 PetriNetUnfolder]: For 221/252 co-relation queries the response was YES. [2021-06-10 21:21:38,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 75 events. 32/75 cut-off events. For 221/252 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 224 event pairs, 16 based on Foata normal form. 12/79 useless extension candidates. Maximal degree in co-relation 189. Up to 49 conditions per place. [2021-06-10 21:21:38,792 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 5 selfloop transitions, 4 changer transitions 7/26 dead transitions. [2021-06-10 21:21:38,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 26 transitions, 114 flow [2021-06-10 21:21:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:21:38,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:21:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 463 transitions. [2021-06-10 21:21:38,795 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7716666666666666 [2021-06-10 21:21:38,795 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 463 transitions. [2021-06-10 21:21:38,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 463 transitions. [2021-06-10 21:21:38,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:38,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 463 transitions. [2021-06-10 21:21:38,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 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 21:21:38,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 21:21:38,797 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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 21:21:38,797 INFO L185 Difference]: Start difference. First operand has 30 places, 16 transitions, 62 flow. Second operand 5 states and 463 transitions. [2021-06-10 21:21:38,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 26 transitions, 114 flow [2021-06-10 21:21:38,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 102 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-06-10 21:21:38,799 INFO L241 Difference]: Finished difference. Result has 33 places, 19 transitions, 86 flow [2021-06-10 21:21:38,799 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2021-06-10 21:21:38,799 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2021-06-10 21:21:38,799 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 19 transitions, 86 flow [2021-06-10 21:21:38,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 21:21:38,799 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:38,799 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:38,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 21:21:38,800 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:38,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:38,800 INFO L82 PathProgramCache]: Analyzing trace with hash -196060121, now seen corresponding path program 1 times [2021-06-10 21:21:38,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:38,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086871389] [2021-06-10 21:21:38,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:38,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,833 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-10 21:21:38,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:21:38,837 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 21:21:38,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,842 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 21:21:38,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086871389] [2021-06-10 21:21:38,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:38,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:21:38,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114797322] [2021-06-10 21:21:38,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:21:38,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:38,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:21:38,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:21:38,844 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 120 [2021-06-10 21:21:38,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 19 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 21:21:38,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:38,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 120 [2021-06-10 21:21:38,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:38,881 INFO L129 PetriNetUnfolder]: 17/51 cut-off events. [2021-06-10 21:21:38,882 INFO L130 PetriNetUnfolder]: For 151/212 co-relation queries the response was YES. [2021-06-10 21:21:38,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 51 events. 17/51 cut-off events. For 151/212 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 122 event pairs, 3 based on Foata normal form. 20/68 useless extension candidates. Maximal degree in co-relation 179. Up to 35 conditions per place. [2021-06-10 21:21:38,882 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 5 selfloop transitions, 7 changer transitions 7/29 dead transitions. [2021-06-10 21:21:38,882 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 182 flow [2021-06-10 21:21:38,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:21:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:21:38,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2021-06-10 21:21:38,884 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2021-06-10 21:21:38,884 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2021-06-10 21:21:38,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2021-06-10 21:21:38,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:38,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2021-06-10 21:21:38,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:38,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 21:21:38,887 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 21:21:38,887 INFO L185 Difference]: Start difference. First operand has 33 places, 19 transitions, 86 flow. Second operand 6 states and 555 transitions. [2021-06-10 21:21:38,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 182 flow [2021-06-10 21:21:38,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 176 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-10 21:21:38,889 INFO L241 Difference]: Finished difference. Result has 37 places, 22 transitions, 136 flow [2021-06-10 21:21:38,889 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2021-06-10 21:21:38,889 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-06-10 21:21:38,889 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 136 flow [2021-06-10 21:21:38,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 21:21:38,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:38,889 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:38,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 21:21:38,889 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:38,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:38,890 INFO L82 PathProgramCache]: Analyzing trace with hash -960952016, now seen corresponding path program 1 times [2021-06-10 21:21:38,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:38,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397193340] [2021-06-10 21:21:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:38,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:38,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:38,936 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-10 21:21:38,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:21:38,941 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-10 21:21:38,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:21:38,957 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 21:21:38,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397193340] [2021-06-10 21:21:38,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:38,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:21:38,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160516180] [2021-06-10 21:21:38,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:21:38,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:38,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:21:38,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:21:38,960 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 120 [2021-06-10 21:21:38,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 136 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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 21:21:38,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:38,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 120 [2021-06-10 21:21:38,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:39,001 INFO L129 PetriNetUnfolder]: 7/31 cut-off events. [2021-06-10 21:21:39,001 INFO L130 PetriNetUnfolder]: For 130/168 co-relation queries the response was YES. [2021-06-10 21:21:39,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 31 events. 7/31 cut-off events. For 130/168 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 0 based on Foata normal form. 14/44 useless extension candidates. Maximal degree in co-relation 125. Up to 20 conditions per place. [2021-06-10 21:21:39,001 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 2 selfloop transitions, 10 changer transitions 4/26 dead transitions. [2021-06-10 21:21:39,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 26 transitions, 204 flow [2021-06-10 21:21:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-10 21:21:39,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-10 21:21:39,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 641 transitions. [2021-06-10 21:21:39,003 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.763095238095238 [2021-06-10 21:21:39,003 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 641 transitions. [2021-06-10 21:21:39,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 641 transitions. [2021-06-10 21:21:39,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:39,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 641 transitions. [2021-06-10 21:21:39,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.57142857142857) internal successors, (641), 7 states have internal predecessors, (641), 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 21:21:39,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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 21:21:39,005 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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 21:21:39,005 INFO L185 Difference]: Start difference. First operand has 37 places, 22 transitions, 136 flow. Second operand 7 states and 641 transitions. [2021-06-10 21:21:39,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 26 transitions, 204 flow [2021-06-10 21:21:39,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 26 transitions, 166 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-06-10 21:21:39,007 INFO L241 Difference]: Finished difference. Result has 40 places, 22 transitions, 136 flow [2021-06-10 21:21:39,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=136, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2021-06-10 21:21:39,007 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2021-06-10 21:21:39,007 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 22 transitions, 136 flow [2021-06-10 21:21:39,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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 21:21:39,007 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:21:39,007 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:21:39,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 21:21:39,007 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:21:39,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:21:39,008 INFO L82 PathProgramCache]: Analyzing trace with hash -75600480, now seen corresponding path program 1 times [2021-06-10 21:21:39,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:21:39,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167600080] [2021-06-10 21:21:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:21:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:21:39,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:39,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:21:39,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:39,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:39,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:21:39,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:21:39,052 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 21:21:39,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167600080] [2021-06-10 21:21:39,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:21:39,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:21:39,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210073789] [2021-06-10 21:21:39,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:21:39,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:21:39,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:21:39,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:21:39,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 120 [2021-06-10 21:21:39,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 22 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 21:21:39,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:21:39,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 120 [2021-06-10 21:21:39,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:21:39,066 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-06-10 21:21:39,066 INFO L130 PetriNetUnfolder]: For 53/59 co-relation queries the response was YES. [2021-06-10 21:21:39,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 24 events. 5/24 cut-off events. For 53/59 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 78. Up to 11 conditions per place. [2021-06-10 21:21:39,067 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2021-06-10 21:21:39,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 21 transitions, 132 flow [2021-06-10 21:21:39,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:21:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:21:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 373 transitions. [2021-06-10 21:21:39,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7770833333333333 [2021-06-10 21:21:39,068 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 373 transitions. [2021-06-10 21:21:39,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 373 transitions. [2021-06-10 21:21:39,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:21:39,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 373 transitions. [2021-06-10 21:21:39,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 21:21:39,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:39,069 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:21:39,069 INFO L185 Difference]: Start difference. First operand has 40 places, 22 transitions, 136 flow. Second operand 4 states and 373 transitions. [2021-06-10 21:21:39,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 21 transitions, 132 flow [2021-06-10 21:21:39,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 21 transitions, 96 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-06-10 21:21:39,070 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2021-06-10 21:21:39,070 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2021-06-10 21:21:39,070 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2021-06-10 21:21:39,070 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2021-06-10 21:21:39,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 21:21:39,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 21:21:39,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 09:21:39 BasicIcfg [2021-06-10 21:21:39,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 21:21:39,074 INFO L168 Benchmark]: Toolchain (without parser) took 4044.08 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 312.6 MB in the beginning and 373.7 MB in the end (delta: -61.1 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.0 GB. [2021-06-10 21:21:39,076 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 350.2 MB. Free memory is still 330.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:21:39,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.87 ms. Allocated memory is still 350.2 MB. Free memory was 312.4 MB in the beginning and 311.5 MB in the end (delta: 884.9 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-06-10 21:21:39,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.53 ms. Allocated memory is still 350.2 MB. Free memory was 311.5 MB in the beginning and 310.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:21:39,077 INFO L168 Benchmark]: Boogie Preprocessor took 26.39 ms. Allocated memory is still 350.2 MB. Free memory was 310.5 MB in the beginning and 308.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:21:39,077 INFO L168 Benchmark]: RCFGBuilder took 306.53 ms. Allocated memory is still 350.2 MB. Free memory was 308.4 MB in the beginning and 285.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:21:39,077 INFO L168 Benchmark]: TraceAbstraction took 3272.35 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 284.3 MB in the beginning and 373.7 MB in the end (delta: -89.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:21:39,080 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 350.2 MB. Free memory is still 330.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 370.87 ms. Allocated memory is still 350.2 MB. Free memory was 312.4 MB in the beginning and 311.5 MB in the end (delta: 884.9 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.53 ms. Allocated memory is still 350.2 MB. Free memory was 311.5 MB in the beginning and 310.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.39 ms. Allocated memory is still 350.2 MB. Free memory was 310.5 MB in the beginning and 308.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 306.53 ms. Allocated memory is still 350.2 MB. Free memory was 308.4 MB in the beginning and 285.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3272.35 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 284.3 MB in the beginning and 373.7 MB in the end (delta: -89.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2169.8ms, 68 PlacesBefore, 26 PlacesAfterwards, 59 TransitionsBefore, 16 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 46 TotalNumberOfCompositions, 1512 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 779, positive: 700, positive conditional: 0, positive unconditional: 700, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 507, positive: 479, positive conditional: 0, positive unconditional: 479, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 507, positive: 479, positive conditional: 0, positive unconditional: 479, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 507, positive: 468, positive conditional: 0, positive unconditional: 468, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 106, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 779, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 507, unknown conditional: 0, unknown unconditional: 507] , Statistics on independence cache: Total cache size (in pairs): 800, Positive cache size: 772, Positive conditional cache size: 0, Positive unconditional cache size: 772, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3206.4ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 317.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2222.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 38 SDtfs, 30 SDslu, 24 SDs, 0 SdLazy, 135 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 95.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=7, InterpolantAutomatonStates: 41, 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: 17.5ms SsaConstructionTime, 154.3ms SatisfiabilityAnalysisTime, 326.8ms InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 493 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...