./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix020.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix020.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 22:17:34,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 22:17:34,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 22:17:34,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 22:17:34,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 22:17:34,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 22:17:34,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 22:17:34,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 22:17:34,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 22:17:34,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 22:17:34,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 22:17:34,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 22:17:34,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 22:17:34,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 22:17:34,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 22:17:34,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 22:17:34,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 22:17:34,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 22:17:34,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 22:17:34,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 22:17:34,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 22:17:34,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 22:17:34,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 22:17:34,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 22:17:34,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 22:17:34,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 22:17:34,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 22:17:34,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 22:17:34,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 22:17:34,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 22:17:34,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 22:17:34,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 22:17:34,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 22:17:34,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 22:17:34,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 22:17:34,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 22:17:34,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 22:17:34,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 22:17:34,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 22:17:34,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 22:17:34,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 22:17:34,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 22:17:34,180 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 22:17:34,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 22:17:34,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 22:17:34,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 22:17:34,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 22:17:34,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 22:17:34,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 22:17:34,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 22:17:34,184 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 22:17:34,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 22:17:34,185 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 22:17:34,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 22:17:34,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 22:17:34,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 22:17:34,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 22:17:34,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 22:17:34,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 22:17:34,186 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 22:17:34,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 22:17:34,186 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 22:17:34,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 22:17:34,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 22:17:34,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 22:17:34,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 22:17:34,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:17:34,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 22:17:34,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 22:17:34,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 22:17:34,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 22:17:34,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 22:17:34,189 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 22:17:34,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 22:17:34,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 22:17:34,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 22:17:34,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 035ec41aa2053cde8ee24830f9eb7cf444ea0c142ead33ef0c1fe95c3a7de39e [2021-12-17 22:17:34,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 22:17:34,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 22:17:34,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 22:17:34,407 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 22:17:34,407 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 22:17:34,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix020.oepc.i [2021-12-17 22:17:34,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3cc608d0/9959a3061cd142a3a21f10e065961996/FLAGc9e2c2b3a [2021-12-17 22:17:34,783 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 22:17:34,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix020.oepc.i [2021-12-17 22:17:34,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3cc608d0/9959a3061cd142a3a21f10e065961996/FLAGc9e2c2b3a [2021-12-17 22:17:35,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3cc608d0/9959a3061cd142a3a21f10e065961996 [2021-12-17 22:17:35,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 22:17:35,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 22:17:35,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 22:17:35,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 22:17:35,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 22:17:35,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e1a190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35, skipping insertion in model container [2021-12-17 22:17:35,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 22:17:35,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 22:17:35,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix020.oepc.i[945,958] [2021-12-17 22:17:35,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:17:35,609 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 22:17:35,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix020.oepc.i[945,958] [2021-12-17 22:17:35,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 22:17:35,681 INFO L208 MainTranslator]: Completed translation [2021-12-17 22:17:35,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35 WrapperNode [2021-12-17 22:17:35,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 22:17:35,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 22:17:35,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 22:17:35,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 22:17:35,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,734 INFO L137 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2021-12-17 22:17:35,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 22:17:35,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 22:17:35,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 22:17:35,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 22:17:35,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 22:17:35,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 22:17:35,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 22:17:35,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 22:17:35,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (1/1) ... [2021-12-17 22:17:35,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 22:17:35,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 22:17:35,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 22:17:35,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 22:17:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 22:17:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-17 22:17:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 22:17:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 22:17:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 22:17:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-17 22:17:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-17 22:17:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-17 22:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-17 22:17:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-17 22:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-17 22:17:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-12-17 22:17:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-12-17 22:17:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 22:17:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-17 22:17:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 22:17:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 22:17:35,848 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-17 22:17:35,952 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 22:17:35,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 22:17:36,451 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 22:17:36,663 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 22:17:36,663 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 22:17:36,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:17:36 BoogieIcfgContainer [2021-12-17 22:17:36,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 22:17:36,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 22:17:36,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 22:17:36,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 22:17:36,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:17:35" (1/3) ... [2021-12-17 22:17:36,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43203d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:17:36, skipping insertion in model container [2021-12-17 22:17:36,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:17:35" (2/3) ... [2021-12-17 22:17:36,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43203d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:17:36, skipping insertion in model container [2021-12-17 22:17:36,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:17:36" (3/3) ... [2021-12-17 22:17:36,675 INFO L111 eAbstractionObserver]: Analyzing ICFG mix020.oepc.i [2021-12-17 22:17:36,679 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-17 22:17:36,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 22:17:36,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-17 22:17:36,679 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-17 22:17:36,723 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,723 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,723 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,724 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,724 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,724 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,724 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,724 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,725 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,725 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,725 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,726 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,726 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,726 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,726 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,727 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,727 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,728 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,728 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,729 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,729 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,729 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,729 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,730 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,730 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,730 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,730 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,731 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,731 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,731 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,731 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,732 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,732 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,732 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,733 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,733 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,733 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,733 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,733 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,734 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,734 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,734 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,734 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,734 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,735 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,735 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,735 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,735 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,735 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,736 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,736 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,736 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,736 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,736 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,736 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,736 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,737 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,737 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,738 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,738 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,738 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,738 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,739 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,739 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,739 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,739 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,739 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,740 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,741 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,742 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,744 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,744 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,744 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,744 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,745 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,745 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,746 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,746 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,746 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,748 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,748 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,748 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,749 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,749 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,749 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,749 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,749 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,750 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,751 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,752 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,752 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,752 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,752 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,752 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,752 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,753 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,754 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,755 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,756 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,756 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,756 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,756 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,756 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,758 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,758 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,758 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,758 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,758 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,758 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,758 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,758 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,759 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,759 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,759 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,759 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,759 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,759 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,760 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,760 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,760 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,760 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,760 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,762 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,762 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,762 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,762 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,762 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,762 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,762 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,763 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,763 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,763 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,763 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,763 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,763 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,763 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,764 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,764 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,764 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,764 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,764 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,765 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,766 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,766 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,766 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,766 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,766 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,766 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,767 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,767 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,767 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,767 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,767 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,767 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,767 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,768 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,768 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,769 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,769 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,771 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,771 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,772 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,772 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,772 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,772 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,773 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,773 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,773 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,774 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,775 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,776 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,776 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,776 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,777 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,777 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,778 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,781 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,781 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,781 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,781 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,782 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,782 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,782 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,782 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,782 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,782 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,784 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,784 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,784 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,785 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,785 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,785 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,785 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,786 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,786 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,786 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,786 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,786 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,786 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,786 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,787 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,788 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,788 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,788 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~nondet22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,788 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,788 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,788 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,788 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,789 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,796 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,797 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,797 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,797 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,797 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,797 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,797 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,798 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,798 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,798 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-17 22:17:36,799 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-17 22:17:36,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 22:17:36,839 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 22:17:36,839 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-17 22:17:36,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 138 transitions, 296 flow [2021-12-17 22:17:36,899 INFO L129 PetriNetUnfolder]: 2/134 cut-off events. [2021-12-17 22:17:36,899 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:17:36,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 134 events. 2/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2021-12-17 22:17:36,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 138 transitions, 296 flow [2021-12-17 22:17:36,908 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 134 transitions, 280 flow [2021-12-17 22:17:36,922 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-12-17 22:17:36,922 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-17 22:17:36,922 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:17:36,923 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:17:36,923 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:17:36,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:17:36,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1436643446, now seen corresponding path program 1 times [2021-12-17 22:17:36,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:17:36,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330684832] [2021-12-17 22:17:36,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:17:36,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:17:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:17:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:17:37,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:17:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330684832] [2021-12-17 22:17:37,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330684832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:17:37,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:17:37,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 22:17:37,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526643842] [2021-12-17 22:17:37,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:17:37,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 22:17:37,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:17:37,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 22:17:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 22:17:37,200 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 138 [2021-12-17 22:17:37,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 134 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2021-12-17 22:17:37,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:17:37,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 138 [2021-12-17 22:17:37,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:17:37,369 INFO L129 PetriNetUnfolder]: 162/548 cut-off events. [2021-12-17 22:17:37,369 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-12-17 22:17:37,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 548 events. 162/548 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2845 event pairs, 34 based on Foata normal form. 49/568 useless extension candidates. Maximal degree in co-relation 796. Up to 191 conditions per place. [2021-12-17 22:17:37,376 INFO L132 encePairwiseOnDemand]: 133/138 looper letters, 18 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2021-12-17 22:17:37,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 138 transitions, 337 flow [2021-12-17 22:17:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 22:17:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-17 22:17:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2021-12-17 22:17:37,386 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2021-12-17 22:17:37,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2021-12-17 22:17:37,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2021-12-17 22:17:37,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:17:37,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2021-12-17 22:17:37,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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) [2021-12-17 22:17:37,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2021-12-17 22:17:37,397 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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) [2021-12-17 22:17:37,399 INFO L186 Difference]: Start difference. First operand has 145 places, 134 transitions, 280 flow. Second operand 3 states and 391 transitions. [2021-12-17 22:17:37,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 138 transitions, 337 flow [2021-12-17 22:17:37,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 330 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-17 22:17:37,403 INFO L242 Difference]: Finished difference. Result has 141 places, 130 transitions, 272 flow [2021-12-17 22:17:37,405 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=141, PETRI_TRANSITIONS=130} [2021-12-17 22:17:37,415 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, -4 predicate places. [2021-12-17 22:17:37,416 INFO L470 AbstractCegarLoop]: Abstraction has has 141 places, 130 transitions, 272 flow [2021-12-17 22:17:37,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2021-12-17 22:17:37,416 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:17:37,416 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:17:37,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 22:17:37,417 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:17:37,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:17:37,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1501495155, now seen corresponding path program 1 times [2021-12-17 22:17:37,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:17:37,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199051071] [2021-12-17 22:17:37,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:17:37,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:17:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:17:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:17:37,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:17:37,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199051071] [2021-12-17 22:17:37,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199051071] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:17:37,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:17:37,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:17:37,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126306379] [2021-12-17 22:17:37,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:17:37,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:17:37,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:17:37,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:17:37,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:17:37,630 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 138 [2021-12-17 22:17:37,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 272 flow. Second operand has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 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) [2021-12-17 22:17:37,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:17:37,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 138 [2021-12-17 22:17:37,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:17:40,164 INFO L129 PetriNetUnfolder]: 9293/20712 cut-off events. [2021-12-17 22:17:40,165 INFO L130 PetriNetUnfolder]: For 880/880 co-relation queries the response was YES. [2021-12-17 22:17:40,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34545 conditions, 20712 events. 9293/20712 cut-off events. For 880/880 co-relation queries the response was YES. Maximal size of possible extension queue 921. Compared 207555 event pairs, 957 based on Foata normal form. 0/20342 useless extension candidates. Maximal degree in co-relation 34484. Up to 4819 conditions per place. [2021-12-17 22:17:40,287 INFO L132 encePairwiseOnDemand]: 127/138 looper letters, 43 selfloop transitions, 7 changer transitions 113/252 dead transitions. [2021-12-17 22:17:40,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 252 transitions, 838 flow [2021-12-17 22:17:40,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 22:17:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-17 22:17:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1531 transitions. [2021-12-17 22:17:40,292 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8534002229654404 [2021-12-17 22:17:40,292 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1531 transitions. [2021-12-17 22:17:40,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1531 transitions. [2021-12-17 22:17:40,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:17:40,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1531 transitions. [2021-12-17 22:17:40,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.76923076923077) internal successors, (1531), 13 states have internal predecessors, (1531), 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) [2021-12-17 22:17:40,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 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) [2021-12-17 22:17:40,301 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 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) [2021-12-17 22:17:40,301 INFO L186 Difference]: Start difference. First operand has 141 places, 130 transitions, 272 flow. Second operand 13 states and 1531 transitions. [2021-12-17 22:17:40,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 252 transitions, 838 flow [2021-12-17 22:17:40,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 252 transitions, 812 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-17 22:17:40,305 INFO L242 Difference]: Finished difference. Result has 163 places, 121 transitions, 340 flow [2021-12-17 22:17:40,305 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=340, PETRI_PLACES=163, PETRI_TRANSITIONS=121} [2021-12-17 22:17:40,306 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 18 predicate places. [2021-12-17 22:17:40,307 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 121 transitions, 340 flow [2021-12-17 22:17:40,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 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) [2021-12-17 22:17:40,307 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:17:40,307 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:17:40,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 22:17:40,308 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:17:40,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:17:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1993507595, now seen corresponding path program 1 times [2021-12-17 22:17:40,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:17:40,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573858410] [2021-12-17 22:17:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:17:40,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:17:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:17:40,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:17:40,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:17:40,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573858410] [2021-12-17 22:17:40,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573858410] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:17:40,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:17:40,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:17:40,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696176486] [2021-12-17 22:17:40,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:17:40,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:17:40,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:17:40,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:17:40,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:17:40,418 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 138 [2021-12-17 22:17:40,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 121 transitions, 340 flow. Second operand has 7 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 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) [2021-12-17 22:17:40,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:17:40,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 138 [2021-12-17 22:17:40,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:17:42,082 INFO L129 PetriNetUnfolder]: 6732/11701 cut-off events. [2021-12-17 22:17:42,082 INFO L130 PetriNetUnfolder]: For 21234/21234 co-relation queries the response was YES. [2021-12-17 22:17:42,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35225 conditions, 11701 events. 6732/11701 cut-off events. For 21234/21234 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 88259 event pairs, 818 based on Foata normal form. 236/11788 useless extension candidates. Maximal degree in co-relation 35152. Up to 4207 conditions per place. [2021-12-17 22:17:42,150 INFO L132 encePairwiseOnDemand]: 125/138 looper letters, 44 selfloop transitions, 16 changer transitions 88/237 dead transitions. [2021-12-17 22:17:42,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 237 transitions, 1242 flow [2021-12-17 22:17:42,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 22:17:42,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-17 22:17:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1524 transitions. [2021-12-17 22:17:42,153 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8494983277591973 [2021-12-17 22:17:42,154 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1524 transitions. [2021-12-17 22:17:42,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1524 transitions. [2021-12-17 22:17:42,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:17:42,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1524 transitions. [2021-12-17 22:17:42,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.23076923076923) internal successors, (1524), 13 states have internal predecessors, (1524), 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) [2021-12-17 22:17:42,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 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) [2021-12-17 22:17:42,160 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 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) [2021-12-17 22:17:42,160 INFO L186 Difference]: Start difference. First operand has 163 places, 121 transitions, 340 flow. Second operand 13 states and 1524 transitions. [2021-12-17 22:17:42,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 237 transitions, 1242 flow [2021-12-17 22:17:42,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 237 transitions, 1190 flow, removed 24 selfloop flow, removed 4 redundant places. [2021-12-17 22:17:42,271 INFO L242 Difference]: Finished difference. Result has 159 places, 128 transitions, 465 flow [2021-12-17 22:17:42,271 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=465, PETRI_PLACES=159, PETRI_TRANSITIONS=128} [2021-12-17 22:17:42,272 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 14 predicate places. [2021-12-17 22:17:42,272 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 128 transitions, 465 flow [2021-12-17 22:17:42,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 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) [2021-12-17 22:17:42,272 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:17:42,272 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:17:42,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 22:17:42,273 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:17:42,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:17:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1337555068, now seen corresponding path program 1 times [2021-12-17 22:17:42,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:17:42,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285667350] [2021-12-17 22:17:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:17:42,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:17:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:17:42,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:17:42,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:17:42,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285667350] [2021-12-17 22:17:42,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285667350] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:17:42,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:17:42,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:17:42,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678392759] [2021-12-17 22:17:42,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:17:42,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:17:42,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:17:42,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:17:42,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:17:42,460 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2021-12-17 22:17:42,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 128 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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) [2021-12-17 22:17:42,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:17:42,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2021-12-17 22:17:42,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:17:46,151 INFO L129 PetriNetUnfolder]: 17568/30568 cut-off events. [2021-12-17 22:17:46,151 INFO L130 PetriNetUnfolder]: For 34395/41673 co-relation queries the response was YES. [2021-12-17 22:17:46,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73164 conditions, 30568 events. 17568/30568 cut-off events. For 34395/41673 co-relation queries the response was YES. Maximal size of possible extension queue 1967. Compared 274193 event pairs, 1574 based on Foata normal form. 28/28668 useless extension candidates. Maximal degree in co-relation 73083. Up to 9199 conditions per place. [2021-12-17 22:17:46,422 INFO L132 encePairwiseOnDemand]: 127/138 looper letters, 93 selfloop transitions, 20 changer transitions 0/217 dead transitions. [2021-12-17 22:17:46,422 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 217 transitions, 980 flow [2021-12-17 22:17:46,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 22:17:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-17 22:17:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1217 transitions. [2021-12-17 22:17:46,426 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8818840579710145 [2021-12-17 22:17:46,426 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1217 transitions. [2021-12-17 22:17:46,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1217 transitions. [2021-12-17 22:17:46,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:17:46,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1217 transitions. [2021-12-17 22:17:46,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.7) internal successors, (1217), 10 states have internal predecessors, (1217), 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) [2021-12-17 22:17:46,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 138.0) internal successors, (1518), 11 states have internal predecessors, (1518), 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) [2021-12-17 22:17:46,432 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 138.0) internal successors, (1518), 11 states have internal predecessors, (1518), 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) [2021-12-17 22:17:46,432 INFO L186 Difference]: Start difference. First operand has 159 places, 128 transitions, 465 flow. Second operand 10 states and 1217 transitions. [2021-12-17 22:17:46,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 217 transitions, 980 flow [2021-12-17 22:17:46,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 217 transitions, 950 flow, removed 15 selfloop flow, removed 12 redundant places. [2021-12-17 22:17:46,500 INFO L242 Difference]: Finished difference. Result has 153 places, 146 transitions, 578 flow [2021-12-17 22:17:46,500 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=578, PETRI_PLACES=153, PETRI_TRANSITIONS=146} [2021-12-17 22:17:46,501 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 8 predicate places. [2021-12-17 22:17:46,502 INFO L470 AbstractCegarLoop]: Abstraction has has 153 places, 146 transitions, 578 flow [2021-12-17 22:17:46,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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) [2021-12-17 22:17:46,502 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:17:46,502 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:17:46,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 22:17:46,503 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:17:46,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:17:46,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1016920034, now seen corresponding path program 1 times [2021-12-17 22:17:46,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:17:46,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086212952] [2021-12-17 22:17:46,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:17:46,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:17:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:17:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:17:46,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:17:46,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086212952] [2021-12-17 22:17:46,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086212952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:17:46,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:17:46,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 22:17:46,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713076207] [2021-12-17 22:17:46,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:17:46,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 22:17:46,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:17:46,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 22:17:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 22:17:46,643 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 138 [2021-12-17 22:17:46,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 146 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 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) [2021-12-17 22:17:46,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:17:46,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 138 [2021-12-17 22:17:46,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:17:48,871 INFO L129 PetriNetUnfolder]: 6799/17930 cut-off events. [2021-12-17 22:17:48,872 INFO L130 PetriNetUnfolder]: For 24346/26974 co-relation queries the response was YES. [2021-12-17 22:17:48,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48223 conditions, 17930 events. 6799/17930 cut-off events. For 24346/26974 co-relation queries the response was YES. Maximal size of possible extension queue 1182. Compared 208291 event pairs, 2440 based on Foata normal form. 423/17246 useless extension candidates. Maximal degree in co-relation 48145. Up to 3027 conditions per place. [2021-12-17 22:17:49,017 INFO L132 encePairwiseOnDemand]: 132/138 looper letters, 71 selfloop transitions, 15 changer transitions 0/205 dead transitions. [2021-12-17 22:17:49,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 205 transitions, 978 flow [2021-12-17 22:17:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 22:17:49,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-17 22:17:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1099 transitions. [2021-12-17 22:17:49,020 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8848631239935588 [2021-12-17 22:17:49,020 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1099 transitions. [2021-12-17 22:17:49,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1099 transitions. [2021-12-17 22:17:49,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:17:49,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1099 transitions. [2021-12-17 22:17:49,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 122.11111111111111) internal successors, (1099), 9 states have internal predecessors, (1099), 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) [2021-12-17 22:17:49,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 138.0) internal successors, (1380), 10 states have internal predecessors, (1380), 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) [2021-12-17 22:17:49,024 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 138.0) internal successors, (1380), 10 states have internal predecessors, (1380), 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) [2021-12-17 22:17:49,025 INFO L186 Difference]: Start difference. First operand has 153 places, 146 transitions, 578 flow. Second operand 9 states and 1099 transitions. [2021-12-17 22:17:49,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 205 transitions, 978 flow [2021-12-17 22:17:49,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 205 transitions, 976 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-17 22:17:49,136 INFO L242 Difference]: Finished difference. Result has 167 places, 154 transitions, 703 flow [2021-12-17 22:17:49,136 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=703, PETRI_PLACES=167, PETRI_TRANSITIONS=154} [2021-12-17 22:17:49,139 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 22 predicate places. [2021-12-17 22:17:49,139 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 154 transitions, 703 flow [2021-12-17 22:17:49,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 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) [2021-12-17 22:17:49,139 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:17:49,140 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:17:49,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 22:17:49,140 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:17:49,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:17:49,140 INFO L85 PathProgramCache]: Analyzing trace with hash -582556275, now seen corresponding path program 1 times [2021-12-17 22:17:49,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:17:49,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724677105] [2021-12-17 22:17:49,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:17:49,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:17:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:17:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:17:49,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:17:49,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724677105] [2021-12-17 22:17:49,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724677105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:17:49,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:17:49,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:17:49,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575942854] [2021-12-17 22:17:49,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:17:49,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:17:49,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:17:49,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:17:49,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:17:49,249 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2021-12-17 22:17:49,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 154 transitions, 703 flow. Second operand has 7 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 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) [2021-12-17 22:17:49,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:17:49,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2021-12-17 22:17:49,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:17:52,847 INFO L129 PetriNetUnfolder]: 11579/29543 cut-off events. [2021-12-17 22:17:52,847 INFO L130 PetriNetUnfolder]: For 48145/54037 co-relation queries the response was YES. [2021-12-17 22:17:53,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83386 conditions, 29543 events. 11579/29543 cut-off events. For 48145/54037 co-relation queries the response was YES. Maximal size of possible extension queue 1837. Compared 366664 event pairs, 3328 based on Foata normal form. 670/28256 useless extension candidates. Maximal degree in co-relation 83300. Up to 5944 conditions per place. [2021-12-17 22:17:53,188 INFO L132 encePairwiseOnDemand]: 132/138 looper letters, 74 selfloop transitions, 10 changer transitions 0/207 dead transitions. [2021-12-17 22:17:53,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 207 transitions, 1153 flow [2021-12-17 22:17:53,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 22:17:53,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-17 22:17:53,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 840 transitions. [2021-12-17 22:17:53,191 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8695652173913043 [2021-12-17 22:17:53,191 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 840 transitions. [2021-12-17 22:17:53,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 840 transitions. [2021-12-17 22:17:53,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:17:53,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 840 transitions. [2021-12-17 22:17:53,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 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) [2021-12-17 22:17:53,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 138.0) internal successors, (1104), 8 states have internal predecessors, (1104), 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) [2021-12-17 22:17:53,195 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 138.0) internal successors, (1104), 8 states have internal predecessors, (1104), 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) [2021-12-17 22:17:53,195 INFO L186 Difference]: Start difference. First operand has 167 places, 154 transitions, 703 flow. Second operand 7 states and 840 transitions. [2021-12-17 22:17:53,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 207 transitions, 1153 flow [2021-12-17 22:17:53,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 207 transitions, 1136 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-17 22:17:53,570 INFO L242 Difference]: Finished difference. Result has 177 places, 162 transitions, 822 flow [2021-12-17 22:17:53,570 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=822, PETRI_PLACES=177, PETRI_TRANSITIONS=162} [2021-12-17 22:17:53,571 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 32 predicate places. [2021-12-17 22:17:53,571 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 162 transitions, 822 flow [2021-12-17 22:17:53,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 113.42857142857143) internal successors, (794), 7 states have internal predecessors, (794), 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) [2021-12-17 22:17:53,571 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:17:53,571 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:17:53,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 22:17:53,572 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:17:53,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:17:53,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1574018067, now seen corresponding path program 2 times [2021-12-17 22:17:53,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:17:53,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283199787] [2021-12-17 22:17:53,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:17:53,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:17:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:17:53,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:17:53,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:17:53,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283199787] [2021-12-17 22:17:53,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283199787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:17:53,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:17:53,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 22:17:53,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916399253] [2021-12-17 22:17:53,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:17:53,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 22:17:53,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:17:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 22:17:53,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 22:17:53,810 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2021-12-17 22:17:53,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 162 transitions, 822 flow. Second operand has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2021-12-17 22:17:53,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:17:53,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2021-12-17 22:17:53,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:18:02,164 INFO L129 PetriNetUnfolder]: 37824/67460 cut-off events. [2021-12-17 22:18:02,164 INFO L130 PetriNetUnfolder]: For 130733/145942 co-relation queries the response was YES. [2021-12-17 22:18:02,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210119 conditions, 67460 events. 37824/67460 cut-off events. For 130733/145942 co-relation queries the response was YES. Maximal size of possible extension queue 4533. Compared 699499 event pairs, 2149 based on Foata normal form. 1243/66131 useless extension candidates. Maximal degree in co-relation 210029. Up to 13980 conditions per place. [2021-12-17 22:18:02,907 INFO L132 encePairwiseOnDemand]: 127/138 looper letters, 121 selfloop transitions, 38 changer transitions 6/279 dead transitions. [2021-12-17 22:18:02,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 279 transitions, 1730 flow [2021-12-17 22:18:02,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 22:18:02,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-17 22:18:02,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1587 transitions. [2021-12-17 22:18:02,911 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8846153846153846 [2021-12-17 22:18:02,911 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1587 transitions. [2021-12-17 22:18:02,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1587 transitions. [2021-12-17 22:18:02,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:18:02,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1587 transitions. [2021-12-17 22:18:02,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 122.07692307692308) internal successors, (1587), 13 states have internal predecessors, (1587), 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) [2021-12-17 22:18:02,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 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) [2021-12-17 22:18:02,917 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 138.0) internal successors, (1932), 14 states have internal predecessors, (1932), 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) [2021-12-17 22:18:02,917 INFO L186 Difference]: Start difference. First operand has 177 places, 162 transitions, 822 flow. Second operand 13 states and 1587 transitions. [2021-12-17 22:18:02,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 279 transitions, 1730 flow [2021-12-17 22:18:05,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 279 transitions, 1723 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-12-17 22:18:05,236 INFO L242 Difference]: Finished difference. Result has 194 places, 176 transitions, 1038 flow [2021-12-17 22:18:05,236 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1038, PETRI_PLACES=194, PETRI_TRANSITIONS=176} [2021-12-17 22:18:05,237 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 49 predicate places. [2021-12-17 22:18:05,237 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 176 transitions, 1038 flow [2021-12-17 22:18:05,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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) [2021-12-17 22:18:05,237 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:18:05,237 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:18:05,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 22:18:05,238 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:18:05,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:18:05,238 INFO L85 PathProgramCache]: Analyzing trace with hash 833644426, now seen corresponding path program 1 times [2021-12-17 22:18:05,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:18:05,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097942404] [2021-12-17 22:18:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:18:05,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:18:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:18:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:18:05,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:18:05,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097942404] [2021-12-17 22:18:05,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097942404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:18:05,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:18:05,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 22:18:05,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126583004] [2021-12-17 22:18:05,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:18:05,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 22:18:05,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:18:05,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 22:18:05,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-17 22:18:05,353 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 138 [2021-12-17 22:18:05,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 176 transitions, 1038 flow. Second operand has 8 states, 8 states have (on average 113.125) internal successors, (905), 8 states have internal predecessors, (905), 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) [2021-12-17 22:18:05,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:18:05,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 138 [2021-12-17 22:18:05,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:18:14,230 INFO L129 PetriNetUnfolder]: 36721/64819 cut-off events. [2021-12-17 22:18:14,230 INFO L130 PetriNetUnfolder]: For 225021/241731 co-relation queries the response was YES. [2021-12-17 22:18:14,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243013 conditions, 64819 events. 36721/64819 cut-off events. For 225021/241731 co-relation queries the response was YES. Maximal size of possible extension queue 4535. Compared 668821 event pairs, 2298 based on Foata normal form. 827/63010 useless extension candidates. Maximal degree in co-relation 242915. Up to 13444 conditions per place. [2021-12-17 22:18:15,068 INFO L132 encePairwiseOnDemand]: 127/138 looper letters, 117 selfloop transitions, 58 changer transitions 40/321 dead transitions. [2021-12-17 22:18:15,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 321 transitions, 2359 flow [2021-12-17 22:18:15,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-17 22:18:15,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-17 22:18:15,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1956 transitions. [2021-12-17 22:18:15,073 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8858695652173914 [2021-12-17 22:18:15,073 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1956 transitions. [2021-12-17 22:18:15,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1956 transitions. [2021-12-17 22:18:15,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:18:15,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1956 transitions. [2021-12-17 22:18:15,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.25) internal successors, (1956), 16 states have internal predecessors, (1956), 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) [2021-12-17 22:18:15,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 138.0) internal successors, (2346), 17 states have internal predecessors, (2346), 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) [2021-12-17 22:18:15,080 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 138.0) internal successors, (2346), 17 states have internal predecessors, (2346), 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) [2021-12-17 22:18:15,081 INFO L186 Difference]: Start difference. First operand has 194 places, 176 transitions, 1038 flow. Second operand 16 states and 1956 transitions. [2021-12-17 22:18:15,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 321 transitions, 2359 flow [2021-12-17 22:18:30,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 321 transitions, 2240 flow, removed 48 selfloop flow, removed 8 redundant places. [2021-12-17 22:18:30,744 INFO L242 Difference]: Finished difference. Result has 202 places, 194 transitions, 1302 flow [2021-12-17 22:18:30,744 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1302, PETRI_PLACES=202, PETRI_TRANSITIONS=194} [2021-12-17 22:18:30,745 INFO L334 CegarLoopForPetriNet]: 145 programPoint places, 57 predicate places. [2021-12-17 22:18:30,745 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 194 transitions, 1302 flow [2021-12-17 22:18:30,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 113.125) internal successors, (905), 8 states have internal predecessors, (905), 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) [2021-12-17 22:18:30,745 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-17 22:18:30,746 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 22:18:30,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 22:18:30,746 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-12-17 22:18:30,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 22:18:30,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1607675067, now seen corresponding path program 1 times [2021-12-17 22:18:30,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 22:18:30,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025249728] [2021-12-17 22:18:30,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 22:18:30,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 22:18:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 22:18:30,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 22:18:30,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 22:18:30,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025249728] [2021-12-17 22:18:30,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025249728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 22:18:30,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 22:18:30,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 22:18:30,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841593493] [2021-12-17 22:18:30,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 22:18:30,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 22:18:30,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 22:18:30,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 22:18:30,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-17 22:18:30,905 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 138 [2021-12-17 22:18:30,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 194 transitions, 1302 flow. Second operand has 9 states, 9 states have (on average 111.55555555555556) internal successors, (1004), 9 states have internal predecessors, (1004), 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) [2021-12-17 22:18:30,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-17 22:18:30,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 138 [2021-12-17 22:18:30,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-17 22:18:34,835 INFO L129 PetriNetUnfolder]: 11984/38129 cut-off events. [2021-12-17 22:18:34,835 INFO L130 PetriNetUnfolder]: For 192520/204100 co-relation queries the response was YES. [2021-12-17 22:18:35,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145485 conditions, 38129 events. 11984/38129 cut-off events. For 192520/204100 co-relation queries the response was YES. Maximal size of possible extension queue 4928. Compared 591369 event pairs, 368 based on Foata normal form. 15/35813 useless extension candidates. Maximal degree in co-relation 145380. Up to 9364 conditions per place. [2021-12-17 22:18:35,761 INFO L132 encePairwiseOnDemand]: 127/138 looper letters, 48 selfloop transitions, 14 changer transitions 13/244 dead transitions. [2021-12-17 22:18:35,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 244 transitions, 1666 flow [2021-12-17 22:18:35,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 22:18:35,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-17 22:18:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1163 transitions. [2021-12-17 22:18:35,764 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8427536231884057 [2021-12-17 22:18:35,764 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1163 transitions. [2021-12-17 22:18:35,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1163 transitions. [2021-12-17 22:18:35,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-17 22:18:35,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1163 transitions. [2021-12-17 22:18:35,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 116.3) internal successors, (1163), 10 states have internal predecessors, (1163), 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) [2021-12-17 22:18:35,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 138.0) internal successors, (1518), 11 states have internal predecessors, (1518), 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) [2021-12-17 22:18:35,769 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 138.0) internal successors, (1518), 11 states have internal predecessors, (1518), 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) [2021-12-17 22:18:35,769 INFO L186 Difference]: Start difference. First operand has 202 places, 194 transitions, 1302 flow. Second operand 10 states and 1163 transitions. [2021-12-17 22:18:35,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 244 transitions, 1666 flow