./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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/weaver/chl-chromosome-opt-symm.wvr.c -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 e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:00:05,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:00:05,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:00:05,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:00:05,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:00:05,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:00:05,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:00:05,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:00:05,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:00:05,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:00:05,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:00:05,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:00:05,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:00:05,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:00:05,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:00:05,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:00:05,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:00:05,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:00:05,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:00:05,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:00:05,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:00:05,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:00:05,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:00:05,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:00:05,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:00:05,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:00:05,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:00:05,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:00:05,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:00:05,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:00:05,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:00:05,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:00:05,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:00:05,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:00:05,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:00:05,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:00:05,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:00:05,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:00:05,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:00:05,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:00:05,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:00:05,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 03:00:05,268 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:00:05,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:00:05,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:00:05,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:00:05,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:00:05,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:00:05,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:00:05,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:00:05,271 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:00:05,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:00:05,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 03:00:05,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:00:05,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 03:00:05,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:00:05,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:00:05,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:00:05,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:00:05,274 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 03:00:05,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:00:05,274 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:00:05,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:00:05,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:00:05,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:00:05,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:00:05,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:00:05,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:00:05,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:00:05,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:00:05,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:00:05,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:00:05,282 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:00:05,283 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:00:05,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:00:05,283 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a [2021-12-28 03:00:05,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:00:05,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:00:05,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:00:05,612 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:00:05,612 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:00:05,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2021-12-28 03:00:05,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47dd2450/770a4110a1c5415092bc5f32e069e4a9/FLAG52de2e9db [2021-12-28 03:00:06,109 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:00:06,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2021-12-28 03:00:06,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47dd2450/770a4110a1c5415092bc5f32e069e4a9/FLAG52de2e9db [2021-12-28 03:00:06,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47dd2450/770a4110a1c5415092bc5f32e069e4a9 [2021-12-28 03:00:06,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:00:06,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:00:06,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:00:06,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:00:06,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:00:06,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66362658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06, skipping insertion in model container [2021-12-28 03:00:06,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:00:06,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:00:06,718 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/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2021-12-28 03:00:06,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:00:06,743 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:00:06,802 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/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2021-12-28 03:00:06,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:00:06,819 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:00:06,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06 WrapperNode [2021-12-28 03:00:06,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:00:06,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:00:06,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:00:06,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:00:06,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,883 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2021-12-28 03:00:06,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:00:06,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:00:06,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:00:06,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:00:06,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:00:06,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:00:06,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:00:06,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:00:06,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (1/1) ... [2021-12-28 03:00:06,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:00:06,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:00:06,981 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) [2021-12-28 03:00:07,003 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 [2021-12-28 03:00:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:00:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-28 03:00:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-28 03:00:07,019 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-28 03:00:07,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-28 03:00:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:00:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:00:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:00:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:00:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:00:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:00:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:00:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:00:07,023 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-28 03:00:07,155 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:00:07,157 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:00:07,424 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:00:07,433 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:00:07,434 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-28 03:00:07,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:00:07 BoogieIcfgContainer [2021-12-28 03:00:07,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:00:07,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:00:07,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:00:07,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:00:07,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:00:06" (1/3) ... [2021-12-28 03:00:07,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fead8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:00:07, skipping insertion in model container [2021-12-28 03:00:07,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:00:06" (2/3) ... [2021-12-28 03:00:07,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fead8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:00:07, skipping insertion in model container [2021-12-28 03:00:07,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:00:07" (3/3) ... [2021-12-28 03:00:07,442 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2021-12-28 03:00:07,446 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-28 03:00:07,446 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:00:07,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:00:07,446 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-28 03:00:07,516 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,517 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,518 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,531 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,532 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,533 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,533 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,533 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,533 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,534 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,535 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,536 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,537 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,538 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,539 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,540 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,541 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,541 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,541 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,541 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,542 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,543 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,544 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,554 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,555 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,556 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,556 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,557 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,558 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,558 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,558 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,558 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,561 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,562 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,563 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,564 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,564 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,565 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,565 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,579 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,588 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,589 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,589 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,591 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,591 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,592 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,596 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,597 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,598 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,599 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,600 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,603 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,605 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,607 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,609 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,610 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,611 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,613 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,614 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-28 03:00:07,617 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-28 03:00:07,657 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:00:07,664 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 [2021-12-28 03:00:07,665 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-28 03:00:07,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 222 transitions, 460 flow [2021-12-28 03:00:07,778 INFO L129 PetriNetUnfolder]: 21/220 cut-off events. [2021-12-28 03:00:07,778 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-28 03:00:07,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 21/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 263 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2021-12-28 03:00:07,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 222 transitions, 460 flow [2021-12-28 03:00:07,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 211 transitions, 434 flow [2021-12-28 03:00:07,850 INFO L129 PetriNetUnfolder]: 21/210 cut-off events. [2021-12-28 03:00:07,851 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-28 03:00:07,851 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:07,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:07,853 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:07,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:07,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1416583287, now seen corresponding path program 1 times [2021-12-28 03:00:07,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:07,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838797450] [2021-12-28 03:00:07,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:07,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:08,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:00:08,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:08,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838797450] [2021-12-28 03:00:08,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838797450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:08,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:08,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 03:00:08,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904438901] [2021-12-28 03:00:08,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:08,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 03:00:08,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:08,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 03:00:08,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 03:00:08,203 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 222 [2021-12-28 03:00:08,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 211 transitions, 434 flow. Second operand has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 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) [2021-12-28 03:00:08,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:08,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 222 [2021-12-28 03:00:08,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:08,270 INFO L129 PetriNetUnfolder]: 10/200 cut-off events. [2021-12-28 03:00:08,270 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2021-12-28 03:00:08,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 200 events. 10/200 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 13/196 useless extension candidates. Maximal degree in co-relation 148. Up to 5 conditions per place. [2021-12-28 03:00:08,275 INFO L132 encePairwiseOnDemand]: 211/222 looper letters, 4 selfloop transitions, 0 changer transitions 5/200 dead transitions. [2021-12-28 03:00:08,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 200 transitions, 420 flow [2021-12-28 03:00:08,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 03:00:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-28 03:00:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 427 transitions. [2021-12-28 03:00:08,292 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9617117117117117 [2021-12-28 03:00:08,293 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 427 transitions. [2021-12-28 03:00:08,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 427 transitions. [2021-12-28 03:00:08,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:08,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 427 transitions. [2021-12-28 03:00:08,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 213.5) internal successors, (427), 2 states have internal predecessors, (427), 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) [2021-12-28 03:00:08,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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) [2021-12-28 03:00:08,319 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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) [2021-12-28 03:00:08,321 INFO L186 Difference]: Start difference. First operand has 197 places, 211 transitions, 434 flow. Second operand 2 states and 427 transitions. [2021-12-28 03:00:08,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 200 transitions, 420 flow [2021-12-28 03:00:08,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 200 transitions, 412 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-28 03:00:08,330 INFO L242 Difference]: Finished difference. Result has 194 places, 195 transitions, 394 flow [2021-12-28 03:00:08,332 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=394, PETRI_PLACES=194, PETRI_TRANSITIONS=195} [2021-12-28 03:00:08,338 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2021-12-28 03:00:08,339 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 195 transitions, 394 flow [2021-12-28 03:00:08,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 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) [2021-12-28 03:00:08,340 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:08,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:08,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:00:08,341 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:08,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash -422266269, now seen corresponding path program 1 times [2021-12-28 03:00:08,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:08,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655465119] [2021-12-28 03:00:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:08,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:00:08,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:08,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655465119] [2021-12-28 03:00:08,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655465119] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:08,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:08,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:00:08,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421540219] [2021-12-28 03:00:08,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:08,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:00:08,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:08,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:00:08,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:00:08,553 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 222 [2021-12-28 03:00:08,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 195 transitions, 394 flow. Second operand has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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) [2021-12-28 03:00:08,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:08,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 222 [2021-12-28 03:00:08,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:08,671 INFO L129 PetriNetUnfolder]: 10/207 cut-off events. [2021-12-28 03:00:08,671 INFO L130 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2021-12-28 03:00:08,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 207 events. 10/207 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 245. Up to 25 conditions per place. [2021-12-28 03:00:08,673 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 28 selfloop transitions, 8 changer transitions 0/203 dead transitions. [2021-12-28 03:00:08,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 203 transitions, 482 flow [2021-12-28 03:00:08,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:00:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-28 03:00:08,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 948 transitions. [2021-12-28 03:00:08,676 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8540540540540541 [2021-12-28 03:00:08,676 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 948 transitions. [2021-12-28 03:00:08,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 948 transitions. [2021-12-28 03:00:08,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:08,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 948 transitions. [2021-12-28 03:00:08,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.6) internal successors, (948), 5 states have internal predecessors, (948), 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) [2021-12-28 03:00:08,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 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) [2021-12-28 03:00:08,684 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 222.0) internal successors, (1332), 6 states have internal predecessors, (1332), 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) [2021-12-28 03:00:08,684 INFO L186 Difference]: Start difference. First operand has 194 places, 195 transitions, 394 flow. Second operand 5 states and 948 transitions. [2021-12-28 03:00:08,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 203 transitions, 482 flow [2021-12-28 03:00:08,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 203 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-28 03:00:08,693 INFO L242 Difference]: Finished difference. Result has 194 places, 197 transitions, 426 flow [2021-12-28 03:00:08,694 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=194, PETRI_TRANSITIONS=197} [2021-12-28 03:00:08,695 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2021-12-28 03:00:08,695 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 197 transitions, 426 flow [2021-12-28 03:00:08,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 186.0) internal successors, (930), 5 states have internal predecessors, (930), 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) [2021-12-28 03:00:08,696 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:08,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:08,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:00:08,699 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:08,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:08,701 INFO L85 PathProgramCache]: Analyzing trace with hash -419875030, now seen corresponding path program 1 times [2021-12-28 03:00:08,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:08,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057453946] [2021-12-28 03:00:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:08,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:08,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:00:08,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:08,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057453946] [2021-12-28 03:00:08,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057453946] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:00:08,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827191679] [2021-12-28 03:00:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:08,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:00:08,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:00:08,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:00:08,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 03:00:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:08,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 03:00:08,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:00:09,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:00:09,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:00:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 03:00:09,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827191679] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:00:09,546 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:00:09,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2021-12-28 03:00:09,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066744793] [2021-12-28 03:00:09,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:00:09,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 03:00:09,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:09,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 03:00:09,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-12-28 03:00:09,553 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 222 [2021-12-28 03:00:09,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 197 transitions, 426 flow. Second operand has 15 states, 15 states have (on average 183.33333333333334) internal successors, (2750), 15 states have internal predecessors, (2750), 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) [2021-12-28 03:00:09,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:09,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 222 [2021-12-28 03:00:09,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:09,803 INFO L129 PetriNetUnfolder]: 10/225 cut-off events. [2021-12-28 03:00:09,803 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2021-12-28 03:00:09,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 225 events. 10/225 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 226 event pairs, 0 based on Foata normal form. 4/219 useless extension candidates. Maximal degree in co-relation 295. Up to 19 conditions per place. [2021-12-28 03:00:09,805 INFO L132 encePairwiseOnDemand]: 206/222 looper letters, 30 selfloop transitions, 22 changer transitions 0/217 dead transitions. [2021-12-28 03:00:09,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 217 transitions, 574 flow [2021-12-28 03:00:09,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 03:00:09,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-12-28 03:00:09,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2036 transitions. [2021-12-28 03:00:09,810 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8337428337428338 [2021-12-28 03:00:09,810 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2036 transitions. [2021-12-28 03:00:09,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2036 transitions. [2021-12-28 03:00:09,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:09,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2036 transitions. [2021-12-28 03:00:09,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 185.0909090909091) internal successors, (2036), 11 states have internal predecessors, (2036), 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) [2021-12-28 03:00:09,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 222.0) internal successors, (2664), 12 states have internal predecessors, (2664), 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) [2021-12-28 03:00:09,822 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 222.0) internal successors, (2664), 12 states have internal predecessors, (2664), 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) [2021-12-28 03:00:09,822 INFO L186 Difference]: Start difference. First operand has 194 places, 197 transitions, 426 flow. Second operand 11 states and 2036 transitions. [2021-12-28 03:00:09,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 217 transitions, 574 flow [2021-12-28 03:00:09,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 217 transitions, 562 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-28 03:00:09,827 INFO L242 Difference]: Finished difference. Result has 204 places, 209 transitions, 525 flow [2021-12-28 03:00:09,827 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=525, PETRI_PLACES=204, PETRI_TRANSITIONS=209} [2021-12-28 03:00:09,828 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 7 predicate places. [2021-12-28 03:00:09,828 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 209 transitions, 525 flow [2021-12-28 03:00:09,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 183.33333333333334) internal successors, (2750), 15 states have internal predecessors, (2750), 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) [2021-12-28 03:00:09,830 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:09,830 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:09,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 03:00:10,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:00:10,052 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:10,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:10,052 INFO L85 PathProgramCache]: Analyzing trace with hash -970353476, now seen corresponding path program 2 times [2021-12-28 03:00:10,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:10,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086701546] [2021-12-28 03:00:10,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:10,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 03:00:10,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:10,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086701546] [2021-12-28 03:00:10,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086701546] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:00:10,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582823582] [2021-12-28 03:00:10,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 03:00:10,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:00:10,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:00:10,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:00:10,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 03:00:10,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-28 03:00:10,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:00:10,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 03:00:10,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:00:10,657 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-28 03:00:10,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:00:10,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582823582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:10,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:00:10,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-28 03:00:10,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801725433] [2021-12-28 03:00:10,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:10,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:10,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:10,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:10,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-12-28 03:00:10,662 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:10,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 209 transitions, 525 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:10,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:10,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:10,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:10,896 INFO L129 PetriNetUnfolder]: 111/654 cut-off events. [2021-12-28 03:00:10,896 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-12-28 03:00:10,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 654 events. 111/654 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3161 event pairs, 7 based on Foata normal form. 0/587 useless extension candidates. Maximal degree in co-relation 883. Up to 70 conditions per place. [2021-12-28 03:00:10,901 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 50 selfloop transitions, 10 changer transitions 1/250 dead transitions. [2021-12-28 03:00:10,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 250 transitions, 734 flow [2021-12-28 03:00:10,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:00:10,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-28 03:00:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1583 transitions. [2021-12-28 03:00:10,905 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8913288288288288 [2021-12-28 03:00:10,905 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1583 transitions. [2021-12-28 03:00:10,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1583 transitions. [2021-12-28 03:00:10,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:10,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1583 transitions. [2021-12-28 03:00:10,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 197.875) internal successors, (1583), 8 states have internal predecessors, (1583), 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) [2021-12-28 03:00:10,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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) [2021-12-28 03:00:10,926 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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) [2021-12-28 03:00:10,926 INFO L186 Difference]: Start difference. First operand has 204 places, 209 transitions, 525 flow. Second operand 8 states and 1583 transitions. [2021-12-28 03:00:10,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 250 transitions, 734 flow [2021-12-28 03:00:10,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 250 transitions, 717 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-12-28 03:00:10,933 INFO L242 Difference]: Finished difference. Result has 213 places, 216 transitions, 571 flow [2021-12-28 03:00:10,933 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=571, PETRI_PLACES=213, PETRI_TRANSITIONS=216} [2021-12-28 03:00:10,934 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 16 predicate places. [2021-12-28 03:00:10,934 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 216 transitions, 571 flow [2021-12-28 03:00:10,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:10,934 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:10,935 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:10,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 03:00:11,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-28 03:00:11,152 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash -475898132, now seen corresponding path program 3 times [2021-12-28 03:00:11,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:11,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103091881] [2021-12-28 03:00:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:11,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:11,298 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 03:00:11,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:11,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103091881] [2021-12-28 03:00:11,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103091881] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:00:11,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722021468] [2021-12-28 03:00:11,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 03:00:11,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:00:11,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:00:11,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:00:11,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 03:00:11,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-12-28 03:00:11,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:00:11,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 03:00:11,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:00:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-28 03:00:11,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 03:00:11,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722021468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:11,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 03:00:11,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-12-28 03:00:11,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203218660] [2021-12-28 03:00:11,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:11,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:11,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:11,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:11,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-28 03:00:11,759 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:11,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 216 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:11,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:11,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:11,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:12,216 INFO L129 PetriNetUnfolder]: 428/2270 cut-off events. [2021-12-28 03:00:12,217 INFO L130 PetriNetUnfolder]: For 201/212 co-relation queries the response was YES. [2021-12-28 03:00:12,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3130 conditions, 2270 events. 428/2270 cut-off events. For 201/212 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 18503 event pairs, 83 based on Foata normal form. 1/2026 useless extension candidates. Maximal degree in co-relation 3118. Up to 244 conditions per place. [2021-12-28 03:00:12,234 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 59 selfloop transitions, 12 changer transitions 2/269 dead transitions. [2021-12-28 03:00:12,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 269 transitions, 834 flow [2021-12-28 03:00:12,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:00:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-28 03:00:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1595 transitions. [2021-12-28 03:00:12,239 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8980855855855856 [2021-12-28 03:00:12,239 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1595 transitions. [2021-12-28 03:00:12,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1595 transitions. [2021-12-28 03:00:12,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:12,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1595 transitions. [2021-12-28 03:00:12,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 199.375) internal successors, (1595), 8 states have internal predecessors, (1595), 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) [2021-12-28 03:00:12,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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) [2021-12-28 03:00:12,248 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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) [2021-12-28 03:00:12,248 INFO L186 Difference]: Start difference. First operand has 213 places, 216 transitions, 571 flow. Second operand 8 states and 1595 transitions. [2021-12-28 03:00:12,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 269 transitions, 834 flow [2021-12-28 03:00:12,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 269 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-28 03:00:12,258 INFO L242 Difference]: Finished difference. Result has 223 places, 228 transitions, 651 flow [2021-12-28 03:00:12,258 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=651, PETRI_PLACES=223, PETRI_TRANSITIONS=228} [2021-12-28 03:00:12,260 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 26 predicate places. [2021-12-28 03:00:12,260 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 228 transitions, 651 flow [2021-12-28 03:00:12,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:12,261 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:12,262 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:12,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 03:00:12,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:00:12,485 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:12,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:12,486 INFO L85 PathProgramCache]: Analyzing trace with hash 6486200, now seen corresponding path program 4 times [2021-12-28 03:00:12,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:12,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025667171] [2021-12-28 03:00:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:12,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 03:00:12,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:12,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025667171] [2021-12-28 03:00:12,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025667171] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 03:00:12,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810223746] [2021-12-28 03:00:12,606 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 03:00:12,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:00:12,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:00:12,607 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 03:00:12,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 03:00:12,717 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 03:00:12,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 03:00:12,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-28 03:00:12,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 03:00:13,068 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 03:00:13,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 03:00:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 03:00:13,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810223746] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 03:00:13,370 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 03:00:13,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2021-12-28 03:00:13,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814344085] [2021-12-28 03:00:13,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 03:00:13,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-28 03:00:13,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-28 03:00:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2021-12-28 03:00:13,377 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 222 [2021-12-28 03:00:13,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 228 transitions, 651 flow. Second operand has 22 states, 22 states have (on average 183.1818181818182) internal successors, (4030), 22 states have internal predecessors, (4030), 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) [2021-12-28 03:00:13,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:13,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 222 [2021-12-28 03:00:13,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:13,815 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([615] thread2EXIT-->L90-2: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar2_4) (= v_thread2Thread1of1ForFork1_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem24#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0)))) (= 0 v_thread2Thread1of1ForFork1_thidvar1_4)) InVars {thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_#t~mem24#1=|v_ULTIMATE.start_main_#t~mem24#1_5|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} OutVars{thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_#t~mem24#1=|v_ULTIMATE.start_main_#t~mem24#1_5|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} AuxVars[] AssignedVars[][239], [Black: 222#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0)), Black: 1501#(or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) (= ~isNullA~0 0)) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullA~0 0)))), 3194#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 1089#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 1)), Black: 1095#(and (< |ULTIMATE.start_create_fresh_int_array_~i~2#1| |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 2157#(and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (<= |thread1Thread1of1ForFork0_~i~0#1| 0) (not (= ~isNullB~0 0))), 211#true, Black: 2155#(and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (<= |thread1Thread1of1ForFork0_~i~0#1| 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 1) (not (= ~isNullB~0 0))), Black: 2153#(and (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| 0))) (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 0))) (<= |thread1Thread1of1ForFork0_~i~0#1| 0)), Black: 2071#(and (or (and (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullB~0 0))) (and (= ~isNullB~0 0) (= |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| 0))) (<= |thread1Thread1of1ForFork0_~i~0#1| 0)), 1622#(and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))), 1633#true, 128#L90-2true, Black: 1100#true, Black: 1620#(and (or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 0) (= ~isNullA~0 0))) (or (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 0) (= ~isNullA~0 0)) (and (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (not (= ~isNullA~0 0))))), Black: 1624#(and (<= |thread2Thread1of1ForFork1_~i~1#1| 0) (= |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| 1) (= |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| 1) (not (= ~isNullA~0 0))), 1081#(and (<= 5 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= 5 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2021-12-28 03:00:13,816 INFO L384 tUnfolder$Statistics]: this new event has 221 ancestors and is cut-off event [2021-12-28 03:00:13,816 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2021-12-28 03:00:13,816 INFO L387 tUnfolder$Statistics]: existing Event has 218 ancestors and is cut-off event [2021-12-28 03:00:13,816 INFO L387 tUnfolder$Statistics]: existing Event has 205 ancestors and is cut-off event [2021-12-28 03:00:13,825 INFO L129 PetriNetUnfolder]: 124/1135 cut-off events. [2021-12-28 03:00:13,826 INFO L130 PetriNetUnfolder]: For 157/171 co-relation queries the response was YES. [2021-12-28 03:00:13,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1135 events. 124/1135 cut-off events. For 157/171 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7053 event pairs, 8 based on Foata normal form. 5/1051 useless extension candidates. Maximal degree in co-relation 1539. Up to 45 conditions per place. [2021-12-28 03:00:13,836 INFO L132 encePairwiseOnDemand]: 206/222 looper letters, 38 selfloop transitions, 34 changer transitions 0/256 dead transitions. [2021-12-28 03:00:13,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 256 transitions, 907 flow [2021-12-28 03:00:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 03:00:13,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-12-28 03:00:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3136 transitions. [2021-12-28 03:00:13,843 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.830948595654478 [2021-12-28 03:00:13,843 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3136 transitions. [2021-12-28 03:00:13,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3136 transitions. [2021-12-28 03:00:13,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:13,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3136 transitions. [2021-12-28 03:00:13,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 184.47058823529412) internal successors, (3136), 17 states have internal predecessors, (3136), 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) [2021-12-28 03:00:13,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 222.0) internal successors, (3996), 18 states have internal predecessors, (3996), 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) [2021-12-28 03:00:13,859 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 222.0) internal successors, (3996), 18 states have internal predecessors, (3996), 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) [2021-12-28 03:00:13,859 INFO L186 Difference]: Start difference. First operand has 223 places, 228 transitions, 651 flow. Second operand 17 states and 3136 transitions. [2021-12-28 03:00:13,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 256 transitions, 907 flow [2021-12-28 03:00:13,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 256 transitions, 907 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-28 03:00:13,866 INFO L242 Difference]: Finished difference. Result has 242 places, 242 transitions, 826 flow [2021-12-28 03:00:13,866 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=826, PETRI_PLACES=242, PETRI_TRANSITIONS=242} [2021-12-28 03:00:13,867 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 45 predicate places. [2021-12-28 03:00:13,867 INFO L470 AbstractCegarLoop]: Abstraction has has 242 places, 242 transitions, 826 flow [2021-12-28 03:00:13,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 183.1818181818182) internal successors, (4030), 22 states have internal predecessors, (4030), 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) [2021-12-28 03:00:13,869 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:13,869 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:13,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 03:00:14,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 03:00:14,091 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:14,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1604527506, now seen corresponding path program 5 times [2021-12-28 03:00:14,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:14,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171210370] [2021-12-28 03:00:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:14,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:14,211 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:14,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:14,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171210370] [2021-12-28 03:00:14,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171210370] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:14,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:14,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:14,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375335944] [2021-12-28 03:00:14,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:14,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:14,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:14,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:14,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:14,214 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:14,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 242 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:14,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:14,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:14,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:14,679 INFO L129 PetriNetUnfolder]: 485/2716 cut-off events. [2021-12-28 03:00:14,679 INFO L130 PetriNetUnfolder]: For 725/756 co-relation queries the response was YES. [2021-12-28 03:00:14,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4109 conditions, 2716 events. 485/2716 cut-off events. For 725/756 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 22667 event pairs, 91 based on Foata normal form. 25/2495 useless extension candidates. Maximal degree in co-relation 4088. Up to 300 conditions per place. [2021-12-28 03:00:14,698 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 40 selfloop transitions, 15 changer transitions 0/270 dead transitions. [2021-12-28 03:00:14,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 270 transitions, 1050 flow [2021-12-28 03:00:14,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:14,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:14,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2021-12-28 03:00:14,702 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2021-12-28 03:00:14,702 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2021-12-28 03:00:14,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2021-12-28 03:00:14,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:14,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2021-12-28 03:00:14,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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) [2021-12-28 03:00:14,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:14,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:14,707 INFO L186 Difference]: Start difference. First operand has 242 places, 242 transitions, 826 flow. Second operand 6 states and 1188 transitions. [2021-12-28 03:00:14,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 270 transitions, 1050 flow [2021-12-28 03:00:14,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 270 transitions, 1005 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-12-28 03:00:14,715 INFO L242 Difference]: Finished difference. Result has 243 places, 249 transitions, 888 flow [2021-12-28 03:00:14,715 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=888, PETRI_PLACES=243, PETRI_TRANSITIONS=249} [2021-12-28 03:00:14,716 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 46 predicate places. [2021-12-28 03:00:14,716 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 249 transitions, 888 flow [2021-12-28 03:00:14,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:14,716 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:14,716 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:14,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 03:00:14,717 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:14,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1613833440, now seen corresponding path program 6 times [2021-12-28 03:00:14,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:14,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466034085] [2021-12-28 03:00:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:14,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:14,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:14,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466034085] [2021-12-28 03:00:14,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466034085] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:14,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:14,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:14,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996015634] [2021-12-28 03:00:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:14,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:14,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:14,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:14,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:14,850 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:14,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 249 transitions, 888 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:14,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:14,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:14,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:15,425 INFO L129 PetriNetUnfolder]: 571/3057 cut-off events. [2021-12-28 03:00:15,426 INFO L130 PetriNetUnfolder]: For 1620/1687 co-relation queries the response was YES. [2021-12-28 03:00:15,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4970 conditions, 3057 events. 571/3057 cut-off events. For 1620/1687 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 27150 event pairs, 89 based on Foata normal form. 37/2806 useless extension candidates. Maximal degree in co-relation 4945. Up to 559 conditions per place. [2021-12-28 03:00:15,453 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 48 selfloop transitions, 17 changer transitions 0/280 dead transitions. [2021-12-28 03:00:15,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 280 transitions, 1168 flow [2021-12-28 03:00:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:15,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:15,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2021-12-28 03:00:15,457 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2021-12-28 03:00:15,457 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2021-12-28 03:00:15,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2021-12-28 03:00:15,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:15,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2021-12-28 03:00:15,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 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) [2021-12-28 03:00:15,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:15,463 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:15,464 INFO L186 Difference]: Start difference. First operand has 243 places, 249 transitions, 888 flow. Second operand 6 states and 1191 transitions. [2021-12-28 03:00:15,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 280 transitions, 1168 flow [2021-12-28 03:00:15,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 280 transitions, 1158 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-28 03:00:15,473 INFO L242 Difference]: Finished difference. Result has 251 places, 257 transitions, 1024 flow [2021-12-28 03:00:15,474 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1024, PETRI_PLACES=251, PETRI_TRANSITIONS=257} [2021-12-28 03:00:15,474 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 54 predicate places. [2021-12-28 03:00:15,475 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 257 transitions, 1024 flow [2021-12-28 03:00:15,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:15,476 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:15,476 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:15,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 03:00:15,476 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:15,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:15,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1842969722, now seen corresponding path program 7 times [2021-12-28 03:00:15,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:15,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694205326] [2021-12-28 03:00:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:15,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:15,593 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:15,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:15,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694205326] [2021-12-28 03:00:15,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694205326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:15,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:15,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:15,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815418173] [2021-12-28 03:00:15,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:15,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:15,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:15,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:15,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:15,596 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:15,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 257 transitions, 1024 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:15,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:15,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:15,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:16,214 INFO L129 PetriNetUnfolder]: 641/3468 cut-off events. [2021-12-28 03:00:16,214 INFO L130 PetriNetUnfolder]: For 2839/2934 co-relation queries the response was YES. [2021-12-28 03:00:16,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5866 conditions, 3468 events. 641/3468 cut-off events. For 2839/2934 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 32069 event pairs, 116 based on Foata normal form. 37/3165 useless extension candidates. Maximal degree in co-relation 5837. Up to 598 conditions per place. [2021-12-28 03:00:16,241 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 49 selfloop transitions, 16 changer transitions 0/280 dead transitions. [2021-12-28 03:00:16,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 280 transitions, 1285 flow [2021-12-28 03:00:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1187 transitions. [2021-12-28 03:00:16,244 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8911411411411412 [2021-12-28 03:00:16,244 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1187 transitions. [2021-12-28 03:00:16,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1187 transitions. [2021-12-28 03:00:16,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:16,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1187 transitions. [2021-12-28 03:00:16,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 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) [2021-12-28 03:00:16,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:16,249 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:16,249 INFO L186 Difference]: Start difference. First operand has 251 places, 257 transitions, 1024 flow. Second operand 6 states and 1187 transitions. [2021-12-28 03:00:16,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 280 transitions, 1285 flow [2021-12-28 03:00:16,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 280 transitions, 1272 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-28 03:00:16,261 INFO L242 Difference]: Finished difference. Result has 259 places, 262 transitions, 1136 flow [2021-12-28 03:00:16,261 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1011, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1136, PETRI_PLACES=259, PETRI_TRANSITIONS=262} [2021-12-28 03:00:16,262 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 62 predicate places. [2021-12-28 03:00:16,262 INFO L470 AbstractCegarLoop]: Abstraction has has 259 places, 262 transitions, 1136 flow [2021-12-28 03:00:16,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:16,263 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:16,263 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:16,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 03:00:16,263 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:16,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:16,264 INFO L85 PathProgramCache]: Analyzing trace with hash -194760392, now seen corresponding path program 8 times [2021-12-28 03:00:16,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:16,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539155151] [2021-12-28 03:00:16,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:16,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:16,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:16,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539155151] [2021-12-28 03:00:16,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539155151] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:16,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:16,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:16,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533829457] [2021-12-28 03:00:16,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:16,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:16,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:16,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:16,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:16,345 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:16,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 262 transitions, 1136 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:16,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:16,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:16,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:17,165 INFO L129 PetriNetUnfolder]: 823/4769 cut-off events. [2021-12-28 03:00:17,166 INFO L130 PetriNetUnfolder]: For 3094/3205 co-relation queries the response was YES. [2021-12-28 03:00:17,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7779 conditions, 4769 events. 823/4769 cut-off events. For 3094/3205 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 49245 event pairs, 202 based on Foata normal form. 25/4355 useless extension candidates. Maximal degree in co-relation 7746. Up to 900 conditions per place. [2021-12-28 03:00:17,210 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 46 selfloop transitions, 13 changer transitions 0/289 dead transitions. [2021-12-28 03:00:17,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 289 transitions, 1346 flow [2021-12-28 03:00:17,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:17,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:17,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2021-12-28 03:00:17,213 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2021-12-28 03:00:17,214 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2021-12-28 03:00:17,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2021-12-28 03:00:17,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:17,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2021-12-28 03:00:17,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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) [2021-12-28 03:00:17,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:17,219 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:17,219 INFO L186 Difference]: Start difference. First operand has 259 places, 262 transitions, 1136 flow. Second operand 6 states and 1188 transitions. [2021-12-28 03:00:17,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 289 transitions, 1346 flow [2021-12-28 03:00:17,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 289 transitions, 1333 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-28 03:00:17,237 INFO L242 Difference]: Finished difference. Result has 268 places, 271 transitions, 1229 flow [2021-12-28 03:00:17,237 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1229, PETRI_PLACES=268, PETRI_TRANSITIONS=271} [2021-12-28 03:00:17,238 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 71 predicate places. [2021-12-28 03:00:17,238 INFO L470 AbstractCegarLoop]: Abstraction has has 268 places, 271 transitions, 1229 flow [2021-12-28 03:00:17,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:17,239 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:17,239 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:17,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 03:00:17,239 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:17,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1286052604, now seen corresponding path program 9 times [2021-12-28 03:00:17,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:17,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867330448] [2021-12-28 03:00:17,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:17,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:17,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:17,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867330448] [2021-12-28 03:00:17,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867330448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:17,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:17,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:17,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193182808] [2021-12-28 03:00:17,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:17,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:17,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:17,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:17,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:17,346 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:17,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 271 transitions, 1229 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:17,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:17,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:17,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:18,283 INFO L129 PetriNetUnfolder]: 915/5446 cut-off events. [2021-12-28 03:00:18,284 INFO L130 PetriNetUnfolder]: For 4464/4599 co-relation queries the response was YES. [2021-12-28 03:00:18,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9252 conditions, 5446 events. 915/5446 cut-off events. For 4464/4599 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 58210 event pairs, 201 based on Foata normal form. 30/4980 useless extension candidates. Maximal degree in co-relation 9215. Up to 920 conditions per place. [2021-12-28 03:00:18,333 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 61 selfloop transitions, 19 changer transitions 0/310 dead transitions. [2021-12-28 03:00:18,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 310 transitions, 1555 flow [2021-12-28 03:00:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:18,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1199 transitions. [2021-12-28 03:00:18,337 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9001501501501501 [2021-12-28 03:00:18,337 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1199 transitions. [2021-12-28 03:00:18,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1199 transitions. [2021-12-28 03:00:18,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:18,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1199 transitions. [2021-12-28 03:00:18,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 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) [2021-12-28 03:00:18,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:18,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:18,344 INFO L186 Difference]: Start difference. First operand has 268 places, 271 transitions, 1229 flow. Second operand 6 states and 1199 transitions. [2021-12-28 03:00:18,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 310 transitions, 1555 flow [2021-12-28 03:00:18,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 310 transitions, 1543 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-12-28 03:00:18,369 INFO L242 Difference]: Finished difference. Result has 278 places, 282 transitions, 1385 flow [2021-12-28 03:00:18,370 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1223, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1385, PETRI_PLACES=278, PETRI_TRANSITIONS=282} [2021-12-28 03:00:18,370 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 81 predicate places. [2021-12-28 03:00:18,370 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 282 transitions, 1385 flow [2021-12-28 03:00:18,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:18,371 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:18,371 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:18,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 03:00:18,371 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:18,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1651178468, now seen corresponding path program 10 times [2021-12-28 03:00:18,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:18,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426639559] [2021-12-28 03:00:18,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:18,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:18,475 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:18,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:18,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426639559] [2021-12-28 03:00:18,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426639559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:18,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:18,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:18,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113783088] [2021-12-28 03:00:18,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:18,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:18,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:18,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:18,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:18,481 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:18,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 282 transitions, 1385 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:18,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:18,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:18,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:19,385 INFO L129 PetriNetUnfolder]: 1049/6035 cut-off events. [2021-12-28 03:00:19,386 INFO L130 PetriNetUnfolder]: For 5795/5924 co-relation queries the response was YES. [2021-12-28 03:00:19,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10636 conditions, 6035 events. 1049/6035 cut-off events. For 5795/5924 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 65113 event pairs, 123 based on Foata normal form. 38/5547 useless extension candidates. Maximal degree in co-relation 10594. Up to 953 conditions per place. [2021-12-28 03:00:19,445 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 66 selfloop transitions, 24 changer transitions 0/320 dead transitions. [2021-12-28 03:00:19,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 320 transitions, 1737 flow [2021-12-28 03:00:19,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:19,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:19,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2021-12-28 03:00:19,448 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9016516516516516 [2021-12-28 03:00:19,448 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1201 transitions. [2021-12-28 03:00:19,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1201 transitions. [2021-12-28 03:00:19,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:19,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1201 transitions. [2021-12-28 03:00:19,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 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) [2021-12-28 03:00:19,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:19,455 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:19,455 INFO L186 Difference]: Start difference. First operand has 278 places, 282 transitions, 1385 flow. Second operand 6 states and 1201 transitions. [2021-12-28 03:00:19,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 320 transitions, 1737 flow [2021-12-28 03:00:19,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 320 transitions, 1731 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-12-28 03:00:19,488 INFO L242 Difference]: Finished difference. Result has 287 places, 290 transitions, 1548 flow [2021-12-28 03:00:19,489 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1379, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1548, PETRI_PLACES=287, PETRI_TRANSITIONS=290} [2021-12-28 03:00:19,489 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 90 predicate places. [2021-12-28 03:00:19,490 INFO L470 AbstractCegarLoop]: Abstraction has has 287 places, 290 transitions, 1548 flow [2021-12-28 03:00:19,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:19,490 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:19,490 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:19,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 03:00:19,491 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:19,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:19,491 INFO L85 PathProgramCache]: Analyzing trace with hash -197382220, now seen corresponding path program 1 times [2021-12-28 03:00:19,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:19,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556567764] [2021-12-28 03:00:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:19,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:19,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:19,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556567764] [2021-12-28 03:00:19,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556567764] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:19,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:19,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:19,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127843354] [2021-12-28 03:00:19,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:19,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:19,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:19,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:19,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:19,574 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:19,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 290 transitions, 1548 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:19,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:19,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:19,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:20,522 INFO L129 PetriNetUnfolder]: 1035/6038 cut-off events. [2021-12-28 03:00:20,522 INFO L130 PetriNetUnfolder]: For 7318/7492 co-relation queries the response was YES. [2021-12-28 03:00:20,558 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11237 conditions, 6038 events. 1035/6038 cut-off events. For 7318/7492 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 65721 event pairs, 150 based on Foata normal form. 39/5552 useless extension candidates. Maximal degree in co-relation 11190. Up to 531 conditions per place. [2021-12-28 03:00:20,580 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 83 selfloop transitions, 20 changer transitions 14/347 dead transitions. [2021-12-28 03:00:20,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 347 transitions, 2144 flow [2021-12-28 03:00:20,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:00:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 03:00:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1780 transitions. [2021-12-28 03:00:20,584 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8908908908908909 [2021-12-28 03:00:20,585 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1780 transitions. [2021-12-28 03:00:20,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1780 transitions. [2021-12-28 03:00:20,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:20,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1780 transitions. [2021-12-28 03:00:20,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 197.77777777777777) internal successors, (1780), 9 states have internal predecessors, (1780), 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) [2021-12-28 03:00:20,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 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) [2021-12-28 03:00:20,594 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 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) [2021-12-28 03:00:20,594 INFO L186 Difference]: Start difference. First operand has 287 places, 290 transitions, 1548 flow. Second operand 9 states and 1780 transitions. [2021-12-28 03:00:20,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 347 transitions, 2144 flow [2021-12-28 03:00:20,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 347 transitions, 2125 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-12-28 03:00:20,635 INFO L242 Difference]: Finished difference. Result has 299 places, 296 transitions, 1668 flow [2021-12-28 03:00:20,635 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1668, PETRI_PLACES=299, PETRI_TRANSITIONS=296} [2021-12-28 03:00:20,636 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 102 predicate places. [2021-12-28 03:00:20,636 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 296 transitions, 1668 flow [2021-12-28 03:00:20,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:20,636 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:20,637 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:20,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 03:00:20,637 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:20,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:20,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1101194472, now seen corresponding path program 2 times [2021-12-28 03:00:20,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:20,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949971402] [2021-12-28 03:00:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:20,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:20,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:20,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949971402] [2021-12-28 03:00:20,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949971402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:20,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:20,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:20,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090391049] [2021-12-28 03:00:20,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:20,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:20,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:20,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:20,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:20,738 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:20,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 296 transitions, 1668 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:20,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:20,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:20,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:21,705 INFO L129 PetriNetUnfolder]: 999/5942 cut-off events. [2021-12-28 03:00:21,705 INFO L130 PetriNetUnfolder]: For 7826/8017 co-relation queries the response was YES. [2021-12-28 03:00:21,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11184 conditions, 5942 events. 999/5942 cut-off events. For 7826/8017 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 64369 event pairs, 100 based on Foata normal form. 64/5504 useless extension candidates. Maximal degree in co-relation 11132. Up to 531 conditions per place. [2021-12-28 03:00:21,754 INFO L132 encePairwiseOnDemand]: 210/222 looper letters, 73 selfloop transitions, 41 changer transitions 4/348 dead transitions. [2021-12-28 03:00:21,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 348 transitions, 2161 flow [2021-12-28 03:00:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:00:21,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-28 03:00:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1603 transitions. [2021-12-28 03:00:21,760 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9025900900900901 [2021-12-28 03:00:21,760 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1603 transitions. [2021-12-28 03:00:21,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1603 transitions. [2021-12-28 03:00:21,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:21,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1603 transitions. [2021-12-28 03:00:21,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 200.375) internal successors, (1603), 8 states have internal predecessors, (1603), 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) [2021-12-28 03:00:21,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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) [2021-12-28 03:00:21,769 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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) [2021-12-28 03:00:21,769 INFO L186 Difference]: Start difference. First operand has 299 places, 296 transitions, 1668 flow. Second operand 8 states and 1603 transitions. [2021-12-28 03:00:21,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 348 transitions, 2161 flow [2021-12-28 03:00:21,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 348 transitions, 2148 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-12-28 03:00:21,811 INFO L242 Difference]: Finished difference. Result has 303 places, 305 transitions, 1884 flow [2021-12-28 03:00:21,811 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1657, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1884, PETRI_PLACES=303, PETRI_TRANSITIONS=305} [2021-12-28 03:00:21,812 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 106 predicate places. [2021-12-28 03:00:21,812 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 305 transitions, 1884 flow [2021-12-28 03:00:21,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:21,813 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:21,813 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:21,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 03:00:21,814 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:21,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:21,815 INFO L85 PathProgramCache]: Analyzing trace with hash -173112068, now seen corresponding path program 3 times [2021-12-28 03:00:21,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:21,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997256531] [2021-12-28 03:00:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:21,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:21,916 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:21,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:21,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997256531] [2021-12-28 03:00:21,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997256531] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:21,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:21,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:21,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430735736] [2021-12-28 03:00:21,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:21,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:21,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:21,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:21,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:21,924 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:21,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 305 transitions, 1884 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:21,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:21,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:21,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:22,855 INFO L129 PetriNetUnfolder]: 967/5605 cut-off events. [2021-12-28 03:00:22,856 INFO L130 PetriNetUnfolder]: For 9099/9301 co-relation queries the response was YES. [2021-12-28 03:00:22,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11148 conditions, 5605 events. 967/5605 cut-off events. For 9099/9301 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 59386 event pairs, 141 based on Foata normal form. 66/5192 useless extension candidates. Maximal degree in co-relation 11094. Up to 532 conditions per place. [2021-12-28 03:00:22,906 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 73 selfloop transitions, 34 changer transitions 8/345 dead transitions. [2021-12-28 03:00:22,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 345 transitions, 2274 flow [2021-12-28 03:00:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:00:22,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-28 03:00:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1786 transitions. [2021-12-28 03:00:22,909 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8938938938938938 [2021-12-28 03:00:22,910 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1786 transitions. [2021-12-28 03:00:22,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1786 transitions. [2021-12-28 03:00:22,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:22,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1786 transitions. [2021-12-28 03:00:22,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 198.44444444444446) internal successors, (1786), 9 states have internal predecessors, (1786), 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) [2021-12-28 03:00:22,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 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) [2021-12-28 03:00:22,917 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 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) [2021-12-28 03:00:22,917 INFO L186 Difference]: Start difference. First operand has 303 places, 305 transitions, 1884 flow. Second operand 9 states and 1786 transitions. [2021-12-28 03:00:22,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 345 transitions, 2274 flow [2021-12-28 03:00:22,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 345 transitions, 2231 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-12-28 03:00:22,968 INFO L242 Difference]: Finished difference. Result has 310 places, 305 transitions, 1936 flow [2021-12-28 03:00:22,969 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1843, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1936, PETRI_PLACES=310, PETRI_TRANSITIONS=305} [2021-12-28 03:00:22,969 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 113 predicate places. [2021-12-28 03:00:22,969 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 305 transitions, 1936 flow [2021-12-28 03:00:22,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:22,970 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:22,970 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:22,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 03:00:22,970 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:22,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1678622644, now seen corresponding path program 1 times [2021-12-28 03:00:22,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:22,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591619325] [2021-12-28 03:00:22,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:22,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:23,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:23,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591619325] [2021-12-28 03:00:23,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591619325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:23,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:23,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:23,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326816963] [2021-12-28 03:00:23,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:23,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:23,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:23,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:23,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:23,074 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:23,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 305 transitions, 1936 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:23,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:23,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:23,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:23,945 INFO L129 PetriNetUnfolder]: 939/4817 cut-off events. [2021-12-28 03:00:23,946 INFO L130 PetriNetUnfolder]: For 7423/7565 co-relation queries the response was YES. [2021-12-28 03:00:23,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9485 conditions, 4817 events. 939/4817 cut-off events. For 7423/7565 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 49108 event pairs, 126 based on Foata normal form. 52/4408 useless extension candidates. Maximal degree in co-relation 9429. Up to 980 conditions per place. [2021-12-28 03:00:23,994 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 54 selfloop transitions, 15 changer transitions 1/326 dead transitions. [2021-12-28 03:00:23,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 326 transitions, 2174 flow [2021-12-28 03:00:23,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:23,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2021-12-28 03:00:23,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2021-12-28 03:00:23,997 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1188 transitions. [2021-12-28 03:00:23,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1188 transitions. [2021-12-28 03:00:23,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:23,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1188 transitions. [2021-12-28 03:00:24,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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) [2021-12-28 03:00:24,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:24,002 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:24,002 INFO L186 Difference]: Start difference. First operand has 310 places, 305 transitions, 1936 flow. Second operand 6 states and 1188 transitions. [2021-12-28 03:00:24,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 326 transitions, 2174 flow [2021-12-28 03:00:24,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 326 transitions, 2096 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-12-28 03:00:24,045 INFO L242 Difference]: Finished difference. Result has 307 places, 305 transitions, 1896 flow [2021-12-28 03:00:24,045 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1858, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1896, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2021-12-28 03:00:24,046 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 110 predicate places. [2021-12-28 03:00:24,046 INFO L470 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 1896 flow [2021-12-28 03:00:24,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:24,047 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:24,047 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:24,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 03:00:24,047 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:24,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1415945376, now seen corresponding path program 2 times [2021-12-28 03:00:24,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:24,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689629910] [2021-12-28 03:00:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:24,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:24,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:24,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689629910] [2021-12-28 03:00:24,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689629910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:24,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:24,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:24,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232311264] [2021-12-28 03:00:24,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:24,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:24,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:24,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:24,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:24,149 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:24,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 1896 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:24,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:24,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:24,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:24,983 INFO L129 PetriNetUnfolder]: 958/4965 cut-off events. [2021-12-28 03:00:24,983 INFO L130 PetriNetUnfolder]: For 7928/8059 co-relation queries the response was YES. [2021-12-28 03:00:25,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9780 conditions, 4965 events. 958/4965 cut-off events. For 7928/8059 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 51083 event pairs, 149 based on Foata normal form. 38/4521 useless extension candidates. Maximal degree in co-relation 9724. Up to 1039 conditions per place. [2021-12-28 03:00:25,034 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 54 selfloop transitions, 17 changer transitions 1/328 dead transitions. [2021-12-28 03:00:25,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 328 transitions, 2156 flow [2021-12-28 03:00:25,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2021-12-28 03:00:25,037 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8933933933933934 [2021-12-28 03:00:25,037 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1190 transitions. [2021-12-28 03:00:25,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1190 transitions. [2021-12-28 03:00:25,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:25,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1190 transitions. [2021-12-28 03:00:25,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2021-12-28 03:00:25,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:25,042 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:25,042 INFO L186 Difference]: Start difference. First operand has 307 places, 305 transitions, 1896 flow. Second operand 6 states and 1190 transitions. [2021-12-28 03:00:25,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 328 transitions, 2156 flow [2021-12-28 03:00:25,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 328 transitions, 2120 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-12-28 03:00:25,083 INFO L242 Difference]: Finished difference. Result has 309 places, 308 transitions, 1954 flow [2021-12-28 03:00:25,084 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1864, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1954, PETRI_PLACES=309, PETRI_TRANSITIONS=308} [2021-12-28 03:00:25,084 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 112 predicate places. [2021-12-28 03:00:25,084 INFO L470 AbstractCegarLoop]: Abstraction has has 309 places, 308 transitions, 1954 flow [2021-12-28 03:00:25,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:25,085 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:25,085 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:25,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 03:00:25,086 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:25,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash -46372404, now seen corresponding path program 3 times [2021-12-28 03:00:25,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:25,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762865077] [2021-12-28 03:00:25,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:25,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:25,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:25,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762865077] [2021-12-28 03:00:25,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762865077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:25,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:25,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:25,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253733894] [2021-12-28 03:00:25,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:25,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:25,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:25,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:25,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:25,194 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:25,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 308 transitions, 1954 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:25,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:25,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:25,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:26,008 INFO L129 PetriNetUnfolder]: 954/4900 cut-off events. [2021-12-28 03:00:26,008 INFO L130 PetriNetUnfolder]: For 8614/8746 co-relation queries the response was YES. [2021-12-28 03:00:26,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9775 conditions, 4900 events. 954/4900 cut-off events. For 8614/8746 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 50178 event pairs, 178 based on Foata normal form. 34/4451 useless extension candidates. Maximal degree in co-relation 9717. Up to 1039 conditions per place. [2021-12-28 03:00:26,120 INFO L132 encePairwiseOnDemand]: 215/222 looper letters, 54 selfloop transitions, 10 changer transitions 3/323 dead transitions. [2021-12-28 03:00:26,120 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 323 transitions, 2174 flow [2021-12-28 03:00:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:26,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1180 transitions. [2021-12-28 03:00:26,122 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8858858858858859 [2021-12-28 03:00:26,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1180 transitions. [2021-12-28 03:00:26,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1180 transitions. [2021-12-28 03:00:26,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:26,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1180 transitions. [2021-12-28 03:00:26,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.66666666666666) internal successors, (1180), 6 states have internal predecessors, (1180), 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) [2021-12-28 03:00:26,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:26,126 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:26,126 INFO L186 Difference]: Start difference. First operand has 309 places, 308 transitions, 1954 flow. Second operand 6 states and 1180 transitions. [2021-12-28 03:00:26,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 323 transitions, 2174 flow [2021-12-28 03:00:26,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 323 transitions, 2159 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-12-28 03:00:26,163 INFO L242 Difference]: Finished difference. Result has 313 places, 308 transitions, 1972 flow [2021-12-28 03:00:26,163 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1972, PETRI_PLACES=313, PETRI_TRANSITIONS=308} [2021-12-28 03:00:26,164 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 116 predicate places. [2021-12-28 03:00:26,164 INFO L470 AbstractCegarLoop]: Abstraction has has 313 places, 308 transitions, 1972 flow [2021-12-28 03:00:26,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:26,165 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:26,165 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:26,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 03:00:26,165 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:26,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:26,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1865148348, now seen corresponding path program 4 times [2021-12-28 03:00:26,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:26,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136294346] [2021-12-28 03:00:26,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:26,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:26,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:26,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136294346] [2021-12-28 03:00:26,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136294346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:26,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:26,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:26,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358982221] [2021-12-28 03:00:26,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:26,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:26,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:26,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:26,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:26,237 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:26,238 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 308 transitions, 1972 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:26,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:26,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:26,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:27,024 INFO L129 PetriNetUnfolder]: 943/5004 cut-off events. [2021-12-28 03:00:27,024 INFO L130 PetriNetUnfolder]: For 9173/9303 co-relation queries the response was YES. [2021-12-28 03:00:27,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10004 conditions, 5004 events. 943/5004 cut-off events. For 9173/9303 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 51552 event pairs, 177 based on Foata normal form. 27/4550 useless extension candidates. Maximal degree in co-relation 9944. Up to 648 conditions per place. [2021-12-28 03:00:27,073 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 60 selfloop transitions, 12 changer transitions 3/331 dead transitions. [2021-12-28 03:00:27,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 331 transitions, 2272 flow [2021-12-28 03:00:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:27,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1182 transitions. [2021-12-28 03:00:27,075 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8873873873873874 [2021-12-28 03:00:27,076 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1182 transitions. [2021-12-28 03:00:27,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1182 transitions. [2021-12-28 03:00:27,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:27,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1182 transitions. [2021-12-28 03:00:27,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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) [2021-12-28 03:00:27,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:27,080 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:27,080 INFO L186 Difference]: Start difference. First operand has 313 places, 308 transitions, 1972 flow. Second operand 6 states and 1182 transitions. [2021-12-28 03:00:27,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 331 transitions, 2272 flow [2021-12-28 03:00:27,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 331 transitions, 2238 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-12-28 03:00:27,124 INFO L242 Difference]: Finished difference. Result has 314 places, 309 transitions, 2001 flow [2021-12-28 03:00:27,125 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1942, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2001, PETRI_PLACES=314, PETRI_TRANSITIONS=309} [2021-12-28 03:00:27,125 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 117 predicate places. [2021-12-28 03:00:27,126 INFO L470 AbstractCegarLoop]: Abstraction has has 314 places, 309 transitions, 2001 flow [2021-12-28 03:00:27,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:27,126 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:27,126 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:27,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 03:00:27,127 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:27,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:27,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1674637420, now seen corresponding path program 5 times [2021-12-28 03:00:27,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:27,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589289140] [2021-12-28 03:00:27,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:27,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:27,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:27,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589289140] [2021-12-28 03:00:27,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589289140] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:27,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:27,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:27,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589253486] [2021-12-28 03:00:27,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:27,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:27,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:27,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:27,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:27,223 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:27,224 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 309 transitions, 2001 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:27,224 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:27,224 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:27,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:27,972 INFO L129 PetriNetUnfolder]: 925/4889 cut-off events. [2021-12-28 03:00:27,972 INFO L130 PetriNetUnfolder]: For 9231/9369 co-relation queries the response was YES. [2021-12-28 03:00:28,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9898 conditions, 4889 events. 925/4889 cut-off events. For 9231/9369 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 50107 event pairs, 111 based on Foata normal form. 45/4477 useless extension candidates. Maximal degree in co-relation 9837. Up to 584 conditions per place. [2021-12-28 03:00:28,027 INFO L132 encePairwiseOnDemand]: 214/222 looper letters, 51 selfloop transitions, 24 changer transitions 2/333 dead transitions. [2021-12-28 03:00:28,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 333 transitions, 2287 flow [2021-12-28 03:00:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:28,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:28,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2021-12-28 03:00:28,029 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2021-12-28 03:00:28,029 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2021-12-28 03:00:28,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2021-12-28 03:00:28,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:28,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2021-12-28 03:00:28,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 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) [2021-12-28 03:00:28,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:28,033 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:28,033 INFO L186 Difference]: Start difference. First operand has 314 places, 309 transitions, 2001 flow. Second operand 6 states and 1191 transitions. [2021-12-28 03:00:28,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 333 transitions, 2287 flow [2021-12-28 03:00:28,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 333 transitions, 2260 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-12-28 03:00:28,075 INFO L242 Difference]: Finished difference. Result has 316 places, 312 transitions, 2090 flow [2021-12-28 03:00:28,075 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1977, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2090, PETRI_PLACES=316, PETRI_TRANSITIONS=312} [2021-12-28 03:00:28,076 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 119 predicate places. [2021-12-28 03:00:28,076 INFO L470 AbstractCegarLoop]: Abstraction has has 316 places, 312 transitions, 2090 flow [2021-12-28 03:00:28,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:28,076 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:28,077 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:28,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-28 03:00:28,077 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:28,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:28,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1209724388, now seen corresponding path program 6 times [2021-12-28 03:00:28,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:28,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034076054] [2021-12-28 03:00:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:28,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:28,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:28,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034076054] [2021-12-28 03:00:28,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034076054] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:28,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:28,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:28,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726985103] [2021-12-28 03:00:28,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:28,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:28,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:28,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:28,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:28,171 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:28,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 312 transitions, 2090 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:28,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:28,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:28,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:28,875 INFO L129 PetriNetUnfolder]: 920/4764 cut-off events. [2021-12-28 03:00:28,876 INFO L130 PetriNetUnfolder]: For 9840/9979 co-relation queries the response was YES. [2021-12-28 03:00:28,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9842 conditions, 4764 events. 920/4764 cut-off events. For 9840/9979 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 48375 event pairs, 132 based on Foata normal form. 39/4346 useless extension candidates. Maximal degree in co-relation 9780. Up to 602 conditions per place. [2021-12-28 03:00:28,927 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 49 selfloop transitions, 20 changer transitions 4/329 dead transitions. [2021-12-28 03:00:28,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 329 transitions, 2331 flow [2021-12-28 03:00:28,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:00:28,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-28 03:00:28,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1183 transitions. [2021-12-28 03:00:28,929 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8881381381381381 [2021-12-28 03:00:28,929 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1183 transitions. [2021-12-28 03:00:28,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1183 transitions. [2021-12-28 03:00:28,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:28,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1183 transitions. [2021-12-28 03:00:28,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 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) [2021-12-28 03:00:28,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:28,933 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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) [2021-12-28 03:00:28,933 INFO L186 Difference]: Start difference. First operand has 316 places, 312 transitions, 2090 flow. Second operand 6 states and 1183 transitions. [2021-12-28 03:00:28,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 329 transitions, 2331 flow [2021-12-28 03:00:28,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 329 transitions, 2305 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-12-28 03:00:28,981 INFO L242 Difference]: Finished difference. Result has 319 places, 311 transitions, 2089 flow [2021-12-28 03:00:28,981 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2064, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2089, PETRI_PLACES=319, PETRI_TRANSITIONS=311} [2021-12-28 03:00:28,982 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 122 predicate places. [2021-12-28 03:00:28,982 INFO L470 AbstractCegarLoop]: Abstraction has has 319 places, 311 transitions, 2089 flow [2021-12-28 03:00:28,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:28,982 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:28,983 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:28,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-28 03:00:28,983 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:28,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1932845862, now seen corresponding path program 4 times [2021-12-28 03:00:28,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:28,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664977386] [2021-12-28 03:00:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:28,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:29,056 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:29,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:29,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664977386] [2021-12-28 03:00:29,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664977386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:29,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:29,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:29,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603026536] [2021-12-28 03:00:29,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:29,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:29,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:29,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:29,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:29,060 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:29,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 311 transitions, 2089 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:29,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:29,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:29,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:29,873 INFO L129 PetriNetUnfolder]: 929/5304 cut-off events. [2021-12-28 03:00:29,873 INFO L130 PetriNetUnfolder]: For 11432/11638 co-relation queries the response was YES. [2021-12-28 03:00:29,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10999 conditions, 5304 events. 929/5304 cut-off events. For 11432/11638 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 55075 event pairs, 171 based on Foata normal form. 53/4904 useless extension candidates. Maximal degree in co-relation 10936. Up to 830 conditions per place. [2021-12-28 03:00:29,926 INFO L132 encePairwiseOnDemand]: 213/222 looper letters, 88 selfloop transitions, 24 changer transitions 7/355 dead transitions. [2021-12-28 03:00:29,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 355 transitions, 2533 flow [2021-12-28 03:00:29,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 03:00:29,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-28 03:00:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1591 transitions. [2021-12-28 03:00:29,927 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8958333333333334 [2021-12-28 03:00:29,927 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1591 transitions. [2021-12-28 03:00:29,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1591 transitions. [2021-12-28 03:00:29,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:29,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1591 transitions. [2021-12-28 03:00:29,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.875) internal successors, (1591), 8 states have internal predecessors, (1591), 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) [2021-12-28 03:00:29,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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) [2021-12-28 03:00:29,931 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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) [2021-12-28 03:00:29,932 INFO L186 Difference]: Start difference. First operand has 319 places, 311 transitions, 2089 flow. Second operand 8 states and 1591 transitions. [2021-12-28 03:00:29,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 355 transitions, 2533 flow [2021-12-28 03:00:29,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 355 transitions, 2460 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-12-28 03:00:29,987 INFO L242 Difference]: Finished difference. Result has 318 places, 312 transitions, 2080 flow [2021-12-28 03:00:29,988 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2016, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2080, PETRI_PLACES=318, PETRI_TRANSITIONS=312} [2021-12-28 03:00:29,988 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 121 predicate places. [2021-12-28 03:00:29,988 INFO L470 AbstractCegarLoop]: Abstraction has has 318 places, 312 transitions, 2080 flow [2021-12-28 03:00:29,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:29,989 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:29,989 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:29,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-28 03:00:29,989 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:29,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:29,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1389225224, now seen corresponding path program 5 times [2021-12-28 03:00:29,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:29,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803516269] [2021-12-28 03:00:29,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:29,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:30,078 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:30,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:30,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803516269] [2021-12-28 03:00:30,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803516269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:30,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:30,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:30,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338504109] [2021-12-28 03:00:30,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:30,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:30,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:30,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:30,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:30,082 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:30,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 312 transitions, 2080 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:30,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:30,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:30,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:30,894 INFO L129 PetriNetUnfolder]: 912/5132 cut-off events. [2021-12-28 03:00:30,894 INFO L130 PetriNetUnfolder]: For 10219/10413 co-relation queries the response was YES. [2021-12-28 03:00:30,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10651 conditions, 5132 events. 912/5132 cut-off events. For 10219/10413 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 52773 event pairs, 165 based on Foata normal form. 57/4753 useless extension candidates. Maximal degree in co-relation 10590. Up to 830 conditions per place. [2021-12-28 03:00:30,961 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 85 selfloop transitions, 30 changer transitions 4/355 dead transitions. [2021-12-28 03:00:30,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 355 transitions, 2483 flow [2021-12-28 03:00:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:00:30,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-28 03:00:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1409 transitions. [2021-12-28 03:00:30,963 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9066924066924067 [2021-12-28 03:00:30,963 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1409 transitions. [2021-12-28 03:00:30,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1409 transitions. [2021-12-28 03:00:30,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:30,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1409 transitions. [2021-12-28 03:00:30,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 201.28571428571428) internal successors, (1409), 7 states have internal predecessors, (1409), 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) [2021-12-28 03:00:30,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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) [2021-12-28 03:00:30,966 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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) [2021-12-28 03:00:30,966 INFO L186 Difference]: Start difference. First operand has 318 places, 312 transitions, 2080 flow. Second operand 7 states and 1409 transitions. [2021-12-28 03:00:30,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 355 transitions, 2483 flow [2021-12-28 03:00:31,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 355 transitions, 2434 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-12-28 03:00:31,011 INFO L242 Difference]: Finished difference. Result has 320 places, 313 transitions, 2128 flow [2021-12-28 03:00:31,012 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2034, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2128, PETRI_PLACES=320, PETRI_TRANSITIONS=313} [2021-12-28 03:00:31,012 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 123 predicate places. [2021-12-28 03:00:31,012 INFO L470 AbstractCegarLoop]: Abstraction has has 320 places, 313 transitions, 2128 flow [2021-12-28 03:00:31,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:31,013 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:31,013 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:31,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-28 03:00:31,014 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:31,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:31,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1434153486, now seen corresponding path program 6 times [2021-12-28 03:00:31,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:31,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663073888] [2021-12-28 03:00:31,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:31,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:31,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:31,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663073888] [2021-12-28 03:00:31,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663073888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:31,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:31,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:00:31,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732257418] [2021-12-28 03:00:31,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:31,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:00:31,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:00:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:00:31,100 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 222 [2021-12-28 03:00:31,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 313 transitions, 2128 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:31,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:31,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 222 [2021-12-28 03:00:31,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:31,847 INFO L129 PetriNetUnfolder]: 895/4948 cut-off events. [2021-12-28 03:00:31,847 INFO L130 PetriNetUnfolder]: For 10616/10829 co-relation queries the response was YES. [2021-12-28 03:00:31,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10454 conditions, 4948 events. 895/4948 cut-off events. For 10616/10829 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 50393 event pairs, 105 based on Foata normal form. 64/4604 useless extension candidates. Maximal degree in co-relation 10393. Up to 699 conditions per place. [2021-12-28 03:00:31,896 INFO L132 encePairwiseOnDemand]: 212/222 looper letters, 82 selfloop transitions, 32 changer transitions 5/355 dead transitions. [2021-12-28 03:00:31,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 355 transitions, 2538 flow [2021-12-28 03:00:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:00:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-28 03:00:31,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1405 transitions. [2021-12-28 03:00:31,897 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9041184041184042 [2021-12-28 03:00:31,898 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1405 transitions. [2021-12-28 03:00:31,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1405 transitions. [2021-12-28 03:00:31,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:31,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1405 transitions. [2021-12-28 03:00:31,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 200.71428571428572) internal successors, (1405), 7 states have internal predecessors, (1405), 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) [2021-12-28 03:00:31,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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) [2021-12-28 03:00:31,900 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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) [2021-12-28 03:00:31,901 INFO L186 Difference]: Start difference. First operand has 320 places, 313 transitions, 2128 flow. Second operand 7 states and 1405 transitions. [2021-12-28 03:00:31,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 355 transitions, 2538 flow [2021-12-28 03:00:31,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 355 transitions, 2490 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-12-28 03:00:31,943 INFO L242 Difference]: Finished difference. Result has 322 places, 313 transitions, 2146 flow [2021-12-28 03:00:31,944 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2082, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2146, PETRI_PLACES=322, PETRI_TRANSITIONS=313} [2021-12-28 03:00:31,944 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 125 predicate places. [2021-12-28 03:00:31,944 INFO L470 AbstractCegarLoop]: Abstraction has has 322 places, 313 transitions, 2146 flow [2021-12-28 03:00:31,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 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) [2021-12-28 03:00:31,945 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:31,945 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:31,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-28 03:00:31,946 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:31,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1117174808, now seen corresponding path program 1 times [2021-12-28 03:00:31,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:31,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932783305] [2021-12-28 03:00:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:31,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:32,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:32,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932783305] [2021-12-28 03:00:32,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932783305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:32,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:32,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-28 03:00:32,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809473615] [2021-12-28 03:00:32,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:32,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-28 03:00:32,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:32,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-28 03:00:32,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-12-28 03:00:32,306 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2021-12-28 03:00:32,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 313 transitions, 2146 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 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) [2021-12-28 03:00:32,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:32,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2021-12-28 03:00:32,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:39,578 INFO L129 PetriNetUnfolder]: 14321/38058 cut-off events. [2021-12-28 03:00:39,578 INFO L130 PetriNetUnfolder]: For 73054/73211 co-relation queries the response was YES. [2021-12-28 03:00:40,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82178 conditions, 38058 events. 14321/38058 cut-off events. For 73054/73211 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 461520 event pairs, 4887 based on Foata normal form. 32/34552 useless extension candidates. Maximal degree in co-relation 82117. Up to 7008 conditions per place. [2021-12-28 03:00:40,155 INFO L132 encePairwiseOnDemand]: 194/222 looper letters, 279 selfloop transitions, 93 changer transitions 0/574 dead transitions. [2021-12-28 03:00:40,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 574 transitions, 4556 flow [2021-12-28 03:00:40,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-28 03:00:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-12-28 03:00:40,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3740 transitions. [2021-12-28 03:00:40,159 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7324716020368194 [2021-12-28 03:00:40,159 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3740 transitions. [2021-12-28 03:00:40,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3740 transitions. [2021-12-28 03:00:40,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:40,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3740 transitions. [2021-12-28 03:00:40,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 162.6086956521739) internal successors, (3740), 23 states have internal predecessors, (3740), 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) [2021-12-28 03:00:40,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 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) [2021-12-28 03:00:40,168 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 222.0) internal successors, (5328), 24 states have internal predecessors, (5328), 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) [2021-12-28 03:00:40,169 INFO L186 Difference]: Start difference. First operand has 322 places, 313 transitions, 2146 flow. Second operand 23 states and 3740 transitions. [2021-12-28 03:00:40,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 574 transitions, 4556 flow [2021-12-28 03:00:40,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 574 transitions, 4415 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-12-28 03:00:40,491 INFO L242 Difference]: Finished difference. Result has 347 places, 371 transitions, 3041 flow [2021-12-28 03:00:40,492 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2036, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3041, PETRI_PLACES=347, PETRI_TRANSITIONS=371} [2021-12-28 03:00:40,492 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 150 predicate places. [2021-12-28 03:00:40,492 INFO L470 AbstractCegarLoop]: Abstraction has has 347 places, 371 transitions, 3041 flow [2021-12-28 03:00:40,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 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) [2021-12-28 03:00:40,493 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:40,493 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:40,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-28 03:00:40,493 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:40,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:40,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1292242656, now seen corresponding path program 2 times [2021-12-28 03:00:40,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:40,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446944959] [2021-12-28 03:00:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:40,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:40,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:40,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446944959] [2021-12-28 03:00:40,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446944959] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:40,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:40,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-28 03:00:40,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518071782] [2021-12-28 03:00:40,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:40,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-28 03:00:40,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:40,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-28 03:00:40,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-12-28 03:00:40,829 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2021-12-28 03:00:40,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 371 transitions, 3041 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 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) [2021-12-28 03:00:40,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:40,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2021-12-28 03:00:40,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-28 03:00:51,142 INFO L129 PetriNetUnfolder]: 18545/49308 cut-off events. [2021-12-28 03:00:51,143 INFO L130 PetriNetUnfolder]: For 134337/134608 co-relation queries the response was YES. [2021-12-28 03:00:51,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127265 conditions, 49308 events. 18545/49308 cut-off events. For 134337/134608 co-relation queries the response was YES. Maximal size of possible extension queue 1636. Compared 623029 event pairs, 4242 based on Foata normal form. 90/46575 useless extension candidates. Maximal degree in co-relation 127194. Up to 7676 conditions per place. [2021-12-28 03:00:52,288 INFO L132 encePairwiseOnDemand]: 193/222 looper letters, 352 selfloop transitions, 106 changer transitions 0/660 dead transitions. [2021-12-28 03:00:52,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 660 transitions, 6205 flow [2021-12-28 03:00:52,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-28 03:00:52,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-12-28 03:00:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4076 transitions. [2021-12-28 03:00:52,294 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7344144144144145 [2021-12-28 03:00:52,294 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 4076 transitions. [2021-12-28 03:00:52,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 4076 transitions. [2021-12-28 03:00:52,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 03:00:52,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 4076 transitions. [2021-12-28 03:00:52,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 163.04) internal successors, (4076), 25 states have internal predecessors, (4076), 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) [2021-12-28 03:00:52,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 222.0) internal successors, (5772), 26 states have internal predecessors, (5772), 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) [2021-12-28 03:00:52,322 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 222.0) internal successors, (5772), 26 states have internal predecessors, (5772), 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) [2021-12-28 03:00:52,323 INFO L186 Difference]: Start difference. First operand has 347 places, 371 transitions, 3041 flow. Second operand 25 states and 4076 transitions. [2021-12-28 03:00:52,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 660 transitions, 6205 flow [2021-12-28 03:00:52,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 660 transitions, 6138 flow, removed 21 selfloop flow, removed 8 redundant places. [2021-12-28 03:00:52,726 INFO L242 Difference]: Finished difference. Result has 378 places, 424 transitions, 4043 flow [2021-12-28 03:00:52,727 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2998, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=4043, PETRI_PLACES=378, PETRI_TRANSITIONS=424} [2021-12-28 03:00:52,727 INFO L334 CegarLoopForPetriNet]: 197 programPoint places, 181 predicate places. [2021-12-28 03:00:52,727 INFO L470 AbstractCegarLoop]: Abstraction has has 378 places, 424 transitions, 4043 flow [2021-12-28 03:00:52,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 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) [2021-12-28 03:00:52,728 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-28 03:00:52,728 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:00:52,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-28 03:00:52,729 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-12-28 03:00:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:00:52,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1742920164, now seen corresponding path program 3 times [2021-12-28 03:00:52,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:00:52,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629034088] [2021-12-28 03:00:52,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:00:52,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:00:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:00:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-28 03:00:53,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:00:53,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629034088] [2021-12-28 03:00:53,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629034088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:00:53,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:00:53,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-12-28 03:00:53,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436659626] [2021-12-28 03:00:53,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:00:53,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-28 03:00:53,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:00:53,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-28 03:00:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-12-28 03:00:53,074 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 222 [2021-12-28 03:00:53,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 424 transitions, 4043 flow. Second operand has 19 states, 19 states have (on average 153.47368421052633) internal successors, (2916), 19 states have internal predecessors, (2916), 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) [2021-12-28 03:00:53,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-28 03:00:53,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 222 [2021-12-28 03:00:53,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand