./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg --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 a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:43:26,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:43:26,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:43:26,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:43:26,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:43:26,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:43:26,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:43:26,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:43:26,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:43:26,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:43:26,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:43:26,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:43:26,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:43:26,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:43:26,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:43:26,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:43:26,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:43:26,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:43:26,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:43:26,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:43:26,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:43:26,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:43:26,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:43:26,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:43:26,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:43:26,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:43:26,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:43:26,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:43:26,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:43:26,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:43:26,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:43:26,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:43:26,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:43:26,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:43:26,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:43:26,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:43:26,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:43:26,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:43:26,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:43:26,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:43:26,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:43:26,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:43:26,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:43:26,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:43:26,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:43:26,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:43:26,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:43:26,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:43:26,257 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:43:26,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:43:26,258 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:43:26,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:43:26,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:43:26,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:43:26,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:43:26,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:43:26,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:43:26,260 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:43:26,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:43:26,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:43:26,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:43:26,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:43:26,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:43:26,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:43:26,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:43:26,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:43:26,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:43:26,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:43:26,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:43:26,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:43:26,263 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:43:26,264 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:43:26,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:43:26,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:43:26,264 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2021-10-28 09:43:26,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:43:26,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:43:26,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:43:26,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:43:26,602 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:43:26,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2021-10-28 09:43:26,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/data/cf0168311/aad29c7e0b404734ab7d43d77c45b336/FLAG2f9e10d1e [2021-10-28 09:43:27,300 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:43:27,305 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2021-10-28 09:43:27,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/data/cf0168311/aad29c7e0b404734ab7d43d77c45b336/FLAG2f9e10d1e [2021-10-28 09:43:27,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/data/cf0168311/aad29c7e0b404734ab7d43d77c45b336 [2021-10-28 09:43:27,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:43:27,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:43:27,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:43:27,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:43:27,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:43:27,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:43:27" (1/1) ... [2021-10-28 09:43:27,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f55d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:27, skipping insertion in model container [2021-10-28 09:43:27,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:43:27" (1/1) ... [2021-10-28 09:43:27,586 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:43:27,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:43:27,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2021-10-28 09:43:28,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:43:28,182 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:43:28,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2021-10-28 09:43:28,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:43:28,327 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:43:28,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28 WrapperNode [2021-10-28 09:43:28,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:43:28,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:43:28,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:43:28,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:43:28,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:43:28,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:43:28,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:43:28,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:43:28,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:43:28,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:43:28,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:43:28,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:43:28,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (1/1) ... [2021-10-28 09:43:28,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:43:28,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:43:28,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:43:28,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:43:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:43:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 09:43:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:43:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:43:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-28 09:43:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-28 09:43:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-28 09:43:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-28 09:43:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-28 09:43:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-28 09:43:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-28 09:43:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-28 09:43:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:43:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 09:43:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:43:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:43:28,588 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 09:43:30,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:43:30,497 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 09:43:30,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:43:30 BoogieIcfgContainer [2021-10-28 09:43:30,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:43:30,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:43:30,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:43:30,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:43:30,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:43:27" (1/3) ... [2021-10-28 09:43:30,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7413e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:43:30, skipping insertion in model container [2021-10-28 09:43:30,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:43:28" (2/3) ... [2021-10-28 09:43:30,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7413e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:43:30, skipping insertion in model container [2021-10-28 09:43:30,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:43:30" (3/3) ... [2021-10-28 09:43:30,510 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2021-10-28 09:43:30,516 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 09:43:30,517 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:43:30,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-28 09:43:30,517 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 09:43:30,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,563 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,563 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,566 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,566 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,567 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,567 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,569 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,569 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,570 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,570 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,572 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,572 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,572 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,573 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,575 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,575 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,575 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,575 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,576 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,576 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,576 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,576 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,576 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,577 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,577 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,577 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,577 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,578 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,578 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,578 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,578 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,579 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,579 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,579 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,579 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,580 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,581 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,581 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,581 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,581 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,582 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,582 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,582 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,583 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,583 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,583 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,584 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,591 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,594 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,595 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,596 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,596 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,597 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,603 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,603 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,607 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,607 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,607 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,609 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,609 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,610 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,618 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,619 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,619 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:43:30,620 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 09:43:30,679 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:43:30,687 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 [2021-10-28 09:43:30,687 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 09:43:30,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 124 transitions, 268 flow [2021-10-28 09:43:30,785 INFO L129 PetriNetUnfolder]: 2/120 cut-off events. [2021-10-28 09:43:30,786 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:43:30,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2021-10-28 09:43:30,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 124 transitions, 268 flow [2021-10-28 09:43:30,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 120 transitions, 252 flow [2021-10-28 09:43:30,846 INFO L129 PetriNetUnfolder]: 0/85 cut-off events. [2021-10-28 09:43:30,848 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:43:30,849 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:30,850 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] [2021-10-28 09:43:30,850 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:30,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash -5064655, now seen corresponding path program 1 times [2021-10-28 09:43:30,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:30,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496068221] [2021-10-28 09:43:30,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:30,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:31,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:31,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:31,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496068221] [2021-10-28 09:43:31,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496068221] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:31,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:31,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:43:31,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494155526] [2021-10-28 09:43:31,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:43:31,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:31,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:43:31,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:43:31,428 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 124 [2021-10-28 09:43:31,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 120 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:31,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:31,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 124 [2021-10-28 09:43:31,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:31,537 INFO L129 PetriNetUnfolder]: 16/184 cut-off events. [2021-10-28 09:43:31,537 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:43:31,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 184 events. 16/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 397 event pairs, 2 based on Foata normal form. 7/184 useless extension candidates. Maximal degree in co-relation 181. Up to 27 conditions per place. [2021-10-28 09:43:31,542 INFO L132 encePairwiseOnDemand]: 119/124 looper letters, 7 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2021-10-28 09:43:31,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 119 transitions, 268 flow [2021-10-28 09:43:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:43:31,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 09:43:31,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2021-10-28 09:43:31,561 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.956989247311828 [2021-10-28 09:43:31,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2021-10-28 09:43:31,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2021-10-28 09:43:31,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:31,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2021-10-28 09:43:31,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:31,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:31,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:31,583 INFO L186 Difference]: Start difference. First operand has 131 places, 120 transitions, 252 flow. Second operand 3 states and 356 transitions. [2021-10-28 09:43:31,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 119 transitions, 268 flow [2021-10-28 09:43:31,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 119 transitions, 264 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 09:43:31,595 INFO L242 Difference]: Finished difference. Result has 127 places, 116 transitions, 244 flow [2021-10-28 09:43:31,597 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=127, PETRI_TRANSITIONS=116} [2021-10-28 09:43:31,598 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, -4 predicate places. [2021-10-28 09:43:31,599 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 116 transitions, 244 flow [2021-10-28 09:43:31,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:31,600 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:31,600 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] [2021-10-28 09:43:31,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:43:31,601 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:31,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:31,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1247585882, now seen corresponding path program 1 times [2021-10-28 09:43:31,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:31,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101491155] [2021-10-28 09:43:31,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:31,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:31,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:31,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101491155] [2021-10-28 09:43:31,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101491155] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:31,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:31,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:43:31,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921596675] [2021-10-28 09:43:32,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:43:32,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:32,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:43:32,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:43:32,020 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-10-28 09:43:32,021 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 116 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:32,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-10-28 09:43:32,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:32,262 INFO L129 PetriNetUnfolder]: 30/268 cut-off events. [2021-10-28 09:43:32,263 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:43:32,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 268 events. 30/268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 887 event pairs, 6 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 310. Up to 36 conditions per place. [2021-10-28 09:43:32,266 INFO L132 encePairwiseOnDemand]: 117/124 looper letters, 8 selfloop transitions, 3 changer transitions 33/139 dead transitions. [2021-10-28 09:43:32,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 139 transitions, 356 flow [2021-10-28 09:43:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:43:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:43:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1034 transitions. [2021-10-28 09:43:32,273 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9265232974910395 [2021-10-28 09:43:32,273 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1034 transitions. [2021-10-28 09:43:32,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1034 transitions. [2021-10-28 09:43:32,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:32,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1034 transitions. [2021-10-28 09:43:32,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.88888888888889) internal successors, (1034), 9 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,288 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,288 INFO L186 Difference]: Start difference. First operand has 127 places, 116 transitions, 244 flow. Second operand 9 states and 1034 transitions. [2021-10-28 09:43:32,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 139 transitions, 356 flow [2021-10-28 09:43:32,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 139 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 09:43:32,294 INFO L242 Difference]: Finished difference. Result has 140 places, 106 transitions, 259 flow [2021-10-28 09:43:32,295 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=259, PETRI_PLACES=140, PETRI_TRANSITIONS=106} [2021-10-28 09:43:32,295 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 9 predicate places. [2021-10-28 09:43:32,295 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 106 transitions, 259 flow [2021-10-28 09:43:32,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,296 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:32,297 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] [2021-10-28 09:43:32,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:43:32,297 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:32,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:32,298 INFO L85 PathProgramCache]: Analyzing trace with hash -901804539, now seen corresponding path program 1 times [2021-10-28 09:43:32,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:32,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752852080] [2021-10-28 09:43:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:32,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:32,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:32,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752852080] [2021-10-28 09:43:32,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752852080] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:32,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:32,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:43:32,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006952077] [2021-10-28 09:43:32,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:43:32,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:32,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:43:32,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:43:32,481 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-10-28 09:43:32,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 106 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:32,483 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-10-28 09:43:32,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:32,735 INFO L129 PetriNetUnfolder]: 58/266 cut-off events. [2021-10-28 09:43:32,735 INFO L130 PetriNetUnfolder]: For 218/230 co-relation queries the response was YES. [2021-10-28 09:43:32,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 266 events. 58/266 cut-off events. For 218/230 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 944 event pairs, 17 based on Foata normal form. 6/261 useless extension candidates. Maximal degree in co-relation 508. Up to 60 conditions per place. [2021-10-28 09:43:32,741 INFO L132 encePairwiseOnDemand]: 117/124 looper letters, 8 selfloop transitions, 3 changer transitions 19/127 dead transitions. [2021-10-28 09:43:32,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 379 flow [2021-10-28 09:43:32,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:43:32,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:43:32,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1031 transitions. [2021-10-28 09:43:32,746 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9238351254480287 [2021-10-28 09:43:32,746 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1031 transitions. [2021-10-28 09:43:32,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1031 transitions. [2021-10-28 09:43:32,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:32,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1031 transitions. [2021-10-28 09:43:32,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.55555555555556) internal successors, (1031), 9 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,758 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,758 INFO L186 Difference]: Start difference. First operand has 140 places, 106 transitions, 259 flow. Second operand 9 states and 1031 transitions. [2021-10-28 09:43:32,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 379 flow [2021-10-28 09:43:32,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 127 transitions, 362 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-10-28 09:43:32,774 INFO L242 Difference]: Finished difference. Result has 133 places, 108 transitions, 293 flow [2021-10-28 09:43:32,774 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=293, PETRI_PLACES=133, PETRI_TRANSITIONS=108} [2021-10-28 09:43:32,775 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 2 predicate places. [2021-10-28 09:43:32,775 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 108 transitions, 293 flow [2021-10-28 09:43:32,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:32,776 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:32,777 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] [2021-10-28 09:43:32,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:43:32,777 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:32,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:32,779 INFO L85 PathProgramCache]: Analyzing trace with hash 971860943, now seen corresponding path program 1 times [2021-10-28 09:43:32,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:32,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119668374] [2021-10-28 09:43:32,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:32,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:33,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:33,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119668374] [2021-10-28 09:43:33,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119668374] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:33,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:33,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:43:33,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163629799] [2021-10-28 09:43:33,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:43:33,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:33,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:43:33,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:43:33,197 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 124 [2021-10-28 09:43:33,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 108 transitions, 293 flow. Second operand has 9 states, 9 states have (on average 106.11111111111111) internal successors, (955), 9 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:33,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:33,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 124 [2021-10-28 09:43:33,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:34,148 INFO L129 PetriNetUnfolder]: 773/1586 cut-off events. [2021-10-28 09:43:34,148 INFO L130 PetriNetUnfolder]: For 2999/3038 co-relation queries the response was YES. [2021-10-28 09:43:34,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4521 conditions, 1586 events. 773/1586 cut-off events. For 2999/3038 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 10437 event pairs, 258 based on Foata normal form. 51/1555 useless extension candidates. Maximal degree in co-relation 4457. Up to 563 conditions per place. [2021-10-28 09:43:34,182 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 12 selfloop transitions, 9 changer transitions 34/149 dead transitions. [2021-10-28 09:43:34,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 149 transitions, 529 flow [2021-10-28 09:43:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:43:34,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 09:43:34,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1528 transitions. [2021-10-28 09:43:34,190 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.880184331797235 [2021-10-28 09:43:34,190 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1528 transitions. [2021-10-28 09:43:34,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1528 transitions. [2021-10-28 09:43:34,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:34,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1528 transitions. [2021-10-28 09:43:34,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 109.14285714285714) internal successors, (1528), 14 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,204 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,204 INFO L186 Difference]: Start difference. First operand has 133 places, 108 transitions, 293 flow. Second operand 14 states and 1528 transitions. [2021-10-28 09:43:34,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 149 transitions, 529 flow [2021-10-28 09:43:34,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 149 transitions, 508 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-10-28 09:43:34,219 INFO L242 Difference]: Finished difference. Result has 147 places, 114 transitions, 370 flow [2021-10-28 09:43:34,219 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=370, PETRI_PLACES=147, PETRI_TRANSITIONS=114} [2021-10-28 09:43:34,220 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 16 predicate places. [2021-10-28 09:43:34,220 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 114 transitions, 370 flow [2021-10-28 09:43:34,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 106.11111111111111) internal successors, (955), 9 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,221 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:34,221 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] [2021-10-28 09:43:34,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:43:34,221 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:34,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:34,222 INFO L85 PathProgramCache]: Analyzing trace with hash -366806735, now seen corresponding path program 1 times [2021-10-28 09:43:34,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:34,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404959091] [2021-10-28 09:43:34,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:34,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:34,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:34,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404959091] [2021-10-28 09:43:34,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404959091] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:34,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:34,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:43:34,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942590281] [2021-10-28 09:43:34,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:43:34,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:34,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:43:34,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:43:34,446 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-10-28 09:43:34,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 114 transitions, 370 flow. Second operand has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:34,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-10-28 09:43:34,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:34,893 INFO L129 PetriNetUnfolder]: 262/883 cut-off events. [2021-10-28 09:43:34,893 INFO L130 PetriNetUnfolder]: For 3806/4263 co-relation queries the response was YES. [2021-10-28 09:43:34,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3231 conditions, 883 events. 262/883 cut-off events. For 3806/4263 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6393 event pairs, 79 based on Foata normal form. 20/844 useless extension candidates. Maximal degree in co-relation 3157. Up to 144 conditions per place. [2021-10-28 09:43:34,912 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 14 selfloop transitions, 7 changer transitions 6/129 dead transitions. [2021-10-28 09:43:34,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 129 transitions, 563 flow [2021-10-28 09:43:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:43:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:43:34,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1025 transitions. [2021-10-28 09:43:34,917 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9184587813620072 [2021-10-28 09:43:34,917 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1025 transitions. [2021-10-28 09:43:34,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1025 transitions. [2021-10-28 09:43:34,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:34,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1025 transitions. [2021-10-28 09:43:34,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,925 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,925 INFO L186 Difference]: Start difference. First operand has 147 places, 114 transitions, 370 flow. Second operand 9 states and 1025 transitions. [2021-10-28 09:43:34,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 129 transitions, 563 flow [2021-10-28 09:43:34,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 129 transitions, 533 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-10-28 09:43:34,937 INFO L242 Difference]: Finished difference. Result has 149 places, 118 transitions, 440 flow [2021-10-28 09:43:34,938 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=440, PETRI_PLACES=149, PETRI_TRANSITIONS=118} [2021-10-28 09:43:34,938 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 18 predicate places. [2021-10-28 09:43:34,938 INFO L470 AbstractCegarLoop]: Abstraction has has 149 places, 118 transitions, 440 flow [2021-10-28 09:43:34,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:34,939 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:34,939 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] [2021-10-28 09:43:34,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:43:34,940 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:34,940 INFO L85 PathProgramCache]: Analyzing trace with hash -363071608, now seen corresponding path program 1 times [2021-10-28 09:43:34,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:34,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832721167] [2021-10-28 09:43:34,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:34,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:35,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:35,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832721167] [2021-10-28 09:43:35,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832721167] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:35,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:35,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:43:35,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982745613] [2021-10-28 09:43:35,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:43:35,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:35,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:43:35,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:43:35,176 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 124 [2021-10-28 09:43:35,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 118 transitions, 440 flow. Second operand has 9 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:35,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:35,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 124 [2021-10-28 09:43:35,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:36,267 INFO L129 PetriNetUnfolder]: 915/1977 cut-off events. [2021-10-28 09:43:36,268 INFO L130 PetriNetUnfolder]: For 12278/12638 co-relation queries the response was YES. [2021-10-28 09:43:36,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8483 conditions, 1977 events. 915/1977 cut-off events. For 12278/12638 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 14593 event pairs, 212 based on Foata normal form. 45/1938 useless extension candidates. Maximal degree in co-relation 8403. Up to 713 conditions per place. [2021-10-28 09:43:36,320 INFO L132 encePairwiseOnDemand]: 114/124 looper letters, 22 selfloop transitions, 8 changer transitions 39/163 dead transitions. [2021-10-28 09:43:36,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 163 transitions, 1000 flow [2021-10-28 09:43:36,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:43:36,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 09:43:36,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1523 transitions. [2021-10-28 09:43:36,329 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8773041474654378 [2021-10-28 09:43:36,329 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1523 transitions. [2021-10-28 09:43:36,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1523 transitions. [2021-10-28 09:43:36,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:36,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1523 transitions. [2021-10-28 09:43:36,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 108.78571428571429) internal successors, (1523), 14 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:36,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:36,346 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:36,346 INFO L186 Difference]: Start difference. First operand has 149 places, 118 transitions, 440 flow. Second operand 14 states and 1523 transitions. [2021-10-28 09:43:36,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 163 transitions, 1000 flow [2021-10-28 09:43:36,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 163 transitions, 943 flow, removed 27 selfloop flow, removed 4 redundant places. [2021-10-28 09:43:36,408 INFO L242 Difference]: Finished difference. Result has 165 places, 117 transitions, 440 flow [2021-10-28 09:43:36,408 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=440, PETRI_PLACES=165, PETRI_TRANSITIONS=117} [2021-10-28 09:43:36,409 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 34 predicate places. [2021-10-28 09:43:36,409 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 117 transitions, 440 flow [2021-10-28 09:43:36,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 106.22222222222223) internal successors, (956), 9 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:36,410 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:36,411 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] [2021-10-28 09:43:36,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 09:43:36,411 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:36,412 INFO L85 PathProgramCache]: Analyzing trace with hash 634837428, now seen corresponding path program 2 times [2021-10-28 09:43:36,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:36,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013296898] [2021-10-28 09:43:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:36,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:36,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:36,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013296898] [2021-10-28 09:43:36,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013296898] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:36,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:36,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-28 09:43:36,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544976611] [2021-10-28 09:43:36,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:43:36,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:36,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:43:36,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:43:36,762 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 124 [2021-10-28 09:43:36,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 117 transitions, 440 flow. Second operand has 10 states, 10 states have (on average 105.2) internal successors, (1052), 10 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:36,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:36,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 124 [2021-10-28 09:43:36,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:37,499 INFO L129 PetriNetUnfolder]: 619/1430 cut-off events. [2021-10-28 09:43:37,500 INFO L130 PetriNetUnfolder]: For 12512/12788 co-relation queries the response was YES. [2021-10-28 09:43:37,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6898 conditions, 1430 events. 619/1430 cut-off events. For 12512/12788 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 9616 event pairs, 150 based on Foata normal form. 49/1421 useless extension candidates. Maximal degree in co-relation 6808. Up to 501 conditions per place. [2021-10-28 09:43:37,538 INFO L132 encePairwiseOnDemand]: 115/124 looper letters, 20 selfloop transitions, 7 changer transitions 19/139 dead transitions. [2021-10-28 09:43:37,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 139 transitions, 770 flow [2021-10-28 09:43:37,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:43:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-28 09:43:37,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1289 transitions. [2021-10-28 09:43:37,545 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.866263440860215 [2021-10-28 09:43:37,545 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1289 transitions. [2021-10-28 09:43:37,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1289 transitions. [2021-10-28 09:43:37,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:37,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1289 transitions. [2021-10-28 09:43:37,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 107.41666666666667) internal successors, (1289), 12 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:37,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:37,559 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:37,559 INFO L186 Difference]: Start difference. First operand has 165 places, 117 transitions, 440 flow. Second operand 12 states and 1289 transitions. [2021-10-28 09:43:37,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 139 transitions, 770 flow [2021-10-28 09:43:37,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 139 transitions, 697 flow, removed 32 selfloop flow, removed 11 redundant places. [2021-10-28 09:43:37,591 INFO L242 Difference]: Finished difference. Result has 160 places, 117 transitions, 431 flow [2021-10-28 09:43:37,592 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=431, PETRI_PLACES=160, PETRI_TRANSITIONS=117} [2021-10-28 09:43:37,592 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 29 predicate places. [2021-10-28 09:43:37,593 INFO L470 AbstractCegarLoop]: Abstraction has has 160 places, 117 transitions, 431 flow [2021-10-28 09:43:37,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 105.2) internal successors, (1052), 10 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:37,596 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:37,596 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] [2021-10-28 09:43:37,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:43:37,597 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:37,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:37,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1771032138, now seen corresponding path program 1 times [2021-10-28 09:43:37,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:37,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865572734] [2021-10-28 09:43:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:37,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:38,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:38,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865572734] [2021-10-28 09:43:38,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865572734] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:38,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:38,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 09:43:38,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956301474] [2021-10-28 09:43:38,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:43:38,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:38,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:43:38,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:43:38,014 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 124 [2021-10-28 09:43:38,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 117 transitions, 431 flow. Second operand has 11 states, 11 states have (on average 104.18181818181819) internal successors, (1146), 11 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:38,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:38,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 124 [2021-10-28 09:43:38,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:38,556 INFO L129 PetriNetUnfolder]: 511/1241 cut-off events. [2021-10-28 09:43:38,556 INFO L130 PetriNetUnfolder]: For 9829/10095 co-relation queries the response was YES. [2021-10-28 09:43:38,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5757 conditions, 1241 events. 511/1241 cut-off events. For 9829/10095 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8347 event pairs, 157 based on Foata normal form. 50/1228 useless extension candidates. Maximal degree in co-relation 5666. Up to 418 conditions per place. [2021-10-28 09:43:38,589 INFO L132 encePairwiseOnDemand]: 112/124 looper letters, 16 selfloop transitions, 11 changer transitions 23/142 dead transitions. [2021-10-28 09:43:38,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 142 transitions, 749 flow [2021-10-28 09:43:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:43:38,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 09:43:38,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1488 transitions. [2021-10-28 09:43:38,596 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-10-28 09:43:38,597 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1488 transitions. [2021-10-28 09:43:38,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1488 transitions. [2021-10-28 09:43:38,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:38,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1488 transitions. [2021-10-28 09:43:38,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 106.28571428571429) internal successors, (1488), 14 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:38,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:38,611 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:38,611 INFO L186 Difference]: Start difference. First operand has 160 places, 117 transitions, 431 flow. Second operand 14 states and 1488 transitions. [2021-10-28 09:43:38,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 142 transitions, 749 flow [2021-10-28 09:43:38,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 142 transitions, 690 flow, removed 24 selfloop flow, removed 13 redundant places. [2021-10-28 09:43:38,638 INFO L242 Difference]: Finished difference. Result has 161 places, 118 transitions, 456 flow [2021-10-28 09:43:38,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=456, PETRI_PLACES=161, PETRI_TRANSITIONS=118} [2021-10-28 09:43:38,639 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 30 predicate places. [2021-10-28 09:43:38,639 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 118 transitions, 456 flow [2021-10-28 09:43:38,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 104.18181818181819) internal successors, (1146), 11 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:38,640 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:38,640 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] [2021-10-28 09:43:38,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:43:38,641 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:38,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:38,642 INFO L85 PathProgramCache]: Analyzing trace with hash 433003160, now seen corresponding path program 1 times [2021-10-28 09:43:38,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:38,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184948980] [2021-10-28 09:43:38,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:38,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:38,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:38,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184948980] [2021-10-28 09:43:38,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184948980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:38,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:38,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-28 09:43:38,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887004595] [2021-10-28 09:43:38,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:43:38,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:38,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:43:38,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:43:38,974 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 124 [2021-10-28 09:43:38,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 118 transitions, 456 flow. Second operand has 11 states, 11 states have (on average 104.27272727272727) internal successors, (1147), 11 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:38,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:38,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 124 [2021-10-28 09:43:38,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:39,713 INFO L129 PetriNetUnfolder]: 448/1125 cut-off events. [2021-10-28 09:43:39,713 INFO L130 PetriNetUnfolder]: For 9611/9852 co-relation queries the response was YES. [2021-10-28 09:43:39,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5657 conditions, 1125 events. 448/1125 cut-off events. For 9611/9852 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7363 event pairs, 110 based on Foata normal form. 38/1115 useless extension candidates. Maximal degree in co-relation 5566. Up to 402 conditions per place. [2021-10-28 09:43:39,746 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 20 selfloop transitions, 12 changer transitions 19/143 dead transitions. [2021-10-28 09:43:39,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 143 transitions, 859 flow [2021-10-28 09:43:39,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:43:39,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 09:43:39,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1384 transitions. [2021-10-28 09:43:39,757 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.858560794044665 [2021-10-28 09:43:39,757 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1384 transitions. [2021-10-28 09:43:39,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1384 transitions. [2021-10-28 09:43:39,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:39,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1384 transitions. [2021-10-28 09:43:39,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.46153846153847) internal successors, (1384), 13 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:39,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:39,771 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:39,771 INFO L186 Difference]: Start difference. First operand has 161 places, 118 transitions, 456 flow. Second operand 13 states and 1384 transitions. [2021-10-28 09:43:39,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 143 transitions, 859 flow [2021-10-28 09:43:39,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 143 transitions, 822 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-10-28 09:43:39,800 INFO L242 Difference]: Finished difference. Result has 165 places, 122 transitions, 522 flow [2021-10-28 09:43:39,800 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=522, PETRI_PLACES=165, PETRI_TRANSITIONS=122} [2021-10-28 09:43:39,801 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 34 predicate places. [2021-10-28 09:43:39,801 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 122 transitions, 522 flow [2021-10-28 09:43:39,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 104.27272727272727) internal successors, (1147), 11 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:39,802 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:39,802 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] [2021-10-28 09:43:39,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:43:39,803 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:39,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:39,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1384691022, now seen corresponding path program 2 times [2021-10-28 09:43:39,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:39,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731462034] [2021-10-28 09:43:39,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:39,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:40,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:40,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:40,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731462034] [2021-10-28 09:43:40,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731462034] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:40,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:40,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:43:40,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524516763] [2021-10-28 09:43:40,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:43:40,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:40,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:43:40,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:43:40,073 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 124 [2021-10-28 09:43:40,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 122 transitions, 522 flow. Second operand has 9 states, 9 states have (on average 107.33333333333333) internal successors, (966), 9 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:40,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:40,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 124 [2021-10-28 09:43:40,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:40,698 INFO L129 PetriNetUnfolder]: 432/1127 cut-off events. [2021-10-28 09:43:40,699 INFO L130 PetriNetUnfolder]: For 14373/14656 co-relation queries the response was YES. [2021-10-28 09:43:40,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6372 conditions, 1127 events. 432/1127 cut-off events. For 14373/14656 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 7583 event pairs, 114 based on Foata normal form. 42/1117 useless extension candidates. Maximal degree in co-relation 6281. Up to 306 conditions per place. [2021-10-28 09:43:40,737 INFO L132 encePairwiseOnDemand]: 115/124 looper letters, 23 selfloop transitions, 12 changer transitions 19/148 dead transitions. [2021-10-28 09:43:40,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 148 transitions, 1040 flow [2021-10-28 09:43:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:43:40,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 09:43:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1209 transitions. [2021-10-28 09:43:40,744 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2021-10-28 09:43:40,745 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1209 transitions. [2021-10-28 09:43:40,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1209 transitions. [2021-10-28 09:43:40,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:40,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1209 transitions. [2021-10-28 09:43:40,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:40,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:40,757 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:40,757 INFO L186 Difference]: Start difference. First operand has 165 places, 122 transitions, 522 flow. Second operand 11 states and 1209 transitions. [2021-10-28 09:43:40,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 148 transitions, 1040 flow [2021-10-28 09:43:40,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 148 transitions, 855 flow, removed 91 selfloop flow, removed 11 redundant places. [2021-10-28 09:43:40,794 INFO L242 Difference]: Finished difference. Result has 165 places, 124 transitions, 553 flow [2021-10-28 09:43:40,796 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=553, PETRI_PLACES=165, PETRI_TRANSITIONS=124} [2021-10-28 09:43:40,796 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 34 predicate places. [2021-10-28 09:43:40,796 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 124 transitions, 553 flow [2021-10-28 09:43:40,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 107.33333333333333) internal successors, (966), 9 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:40,797 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:40,797 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] [2021-10-28 09:43:40,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:43:40,798 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:40,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:40,799 INFO L85 PathProgramCache]: Analyzing trace with hash 593477003, now seen corresponding path program 1 times [2021-10-28 09:43:40,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:40,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671096780] [2021-10-28 09:43:40,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:40,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:41,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:41,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671096780] [2021-10-28 09:43:41,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671096780] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:41,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:41,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:43:41,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112674487] [2021-10-28 09:43:41,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:43:41,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:41,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:43:41,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:43:41,257 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 124 [2021-10-28 09:43:41,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 124 transitions, 553 flow. Second operand has 13 states, 13 states have (on average 103.23076923076923) internal successors, (1342), 13 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:41,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:41,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 124 [2021-10-28 09:43:41,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:42,022 INFO L129 PetriNetUnfolder]: 335/938 cut-off events. [2021-10-28 09:43:42,022 INFO L130 PetriNetUnfolder]: For 10061/10346 co-relation queries the response was YES. [2021-10-28 09:43:42,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5071 conditions, 938 events. 335/938 cut-off events. For 10061/10346 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6040 event pairs, 86 based on Foata normal form. 25/920 useless extension candidates. Maximal degree in co-relation 4978. Up to 380 conditions per place. [2021-10-28 09:43:42,053 INFO L132 encePairwiseOnDemand]: 112/124 looper letters, 26 selfloop transitions, 14 changer transitions 10/141 dead transitions. [2021-10-28 09:43:42,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 141 transitions, 868 flow [2021-10-28 09:43:42,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:43:42,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 09:43:42,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1466 transitions. [2021-10-28 09:43:42,058 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8444700460829493 [2021-10-28 09:43:42,058 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1466 transitions. [2021-10-28 09:43:42,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1466 transitions. [2021-10-28 09:43:42,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:42,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1466 transitions. [2021-10-28 09:43:42,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 104.71428571428571) internal successors, (1466), 14 states have internal predecessors, (1466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:42,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:42,069 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:42,069 INFO L186 Difference]: Start difference. First operand has 165 places, 124 transitions, 553 flow. Second operand 14 states and 1466 transitions. [2021-10-28 09:43:42,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 141 transitions, 868 flow [2021-10-28 09:43:42,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 141 transitions, 822 flow, removed 15 selfloop flow, removed 6 redundant places. [2021-10-28 09:43:42,100 INFO L242 Difference]: Finished difference. Result has 174 places, 128 transitions, 632 flow [2021-10-28 09:43:42,100 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=632, PETRI_PLACES=174, PETRI_TRANSITIONS=128} [2021-10-28 09:43:42,101 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 43 predicate places. [2021-10-28 09:43:42,101 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 128 transitions, 632 flow [2021-10-28 09:43:42,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 103.23076923076923) internal successors, (1342), 13 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:42,102 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:42,102 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] [2021-10-28 09:43:42,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 09:43:42,103 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:42,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:42,103 INFO L85 PathProgramCache]: Analyzing trace with hash 597009287, now seen corresponding path program 2 times [2021-10-28 09:43:42,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:42,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998780213] [2021-10-28 09:43:42,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:42,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:42,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:42,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998780213] [2021-10-28 09:43:42,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998780213] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:42,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:42,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-10-28 09:43:42,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260917219] [2021-10-28 09:43:42,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:43:42,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:42,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:43:42,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:43:42,472 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 124 [2021-10-28 09:43:42,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 128 transitions, 632 flow. Second operand has 14 states, 14 states have (on average 102.21428571428571) internal successors, (1431), 14 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:42,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:42,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 124 [2021-10-28 09:43:42,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:43,221 INFO L129 PetriNetUnfolder]: 338/977 cut-off events. [2021-10-28 09:43:43,221 INFO L130 PetriNetUnfolder]: For 12956/13456 co-relation queries the response was YES. [2021-10-28 09:43:43,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5577 conditions, 977 events. 338/977 cut-off events. For 12956/13456 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6433 event pairs, 86 based on Foata normal form. 31/964 useless extension candidates. Maximal degree in co-relation 5476. Up to 392 conditions per place. [2021-10-28 09:43:43,252 INFO L132 encePairwiseOnDemand]: 111/124 looper letters, 26 selfloop transitions, 16 changer transitions 10/142 dead transitions. [2021-10-28 09:43:43,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 142 transitions, 977 flow [2021-10-28 09:43:43,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:43:43,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-28 09:43:43,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1553 transitions. [2021-10-28 09:43:43,256 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8349462365591398 [2021-10-28 09:43:43,256 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1553 transitions. [2021-10-28 09:43:43,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1553 transitions. [2021-10-28 09:43:43,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:43,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1553 transitions. [2021-10-28 09:43:43,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 103.53333333333333) internal successors, (1553), 15 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:43,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:43,266 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:43,266 INFO L186 Difference]: Start difference. First operand has 174 places, 128 transitions, 632 flow. Second operand 15 states and 1553 transitions. [2021-10-28 09:43:43,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 142 transitions, 977 flow [2021-10-28 09:43:43,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 142 transitions, 868 flow, removed 44 selfloop flow, removed 11 redundant places. [2021-10-28 09:43:43,312 INFO L242 Difference]: Finished difference. Result has 178 places, 130 transitions, 673 flow [2021-10-28 09:43:43,312 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=673, PETRI_PLACES=178, PETRI_TRANSITIONS=130} [2021-10-28 09:43:43,312 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 47 predicate places. [2021-10-28 09:43:43,313 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 130 transitions, 673 flow [2021-10-28 09:43:43,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 102.21428571428571) internal successors, (1431), 14 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:43,313 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:43,314 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] [2021-10-28 09:43:43,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:43:43,314 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:43,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:43,315 INFO L85 PathProgramCache]: Analyzing trace with hash -839004541, now seen corresponding path program 3 times [2021-10-28 09:43:43,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:43,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857136492] [2021-10-28 09:43:43,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:43,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:43,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:43,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857136492] [2021-10-28 09:43:43,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857136492] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:43,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:43,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:43:43,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041131933] [2021-10-28 09:43:43,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:43:43,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:43,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:43:43,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:43:43,723 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 124 [2021-10-28 09:43:43,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 130 transitions, 673 flow. Second operand has 13 states, 13 states have (on average 102.3076923076923) internal successors, (1330), 13 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:43,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:43,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 124 [2021-10-28 09:43:43,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:44,564 INFO L129 PetriNetUnfolder]: 338/968 cut-off events. [2021-10-28 09:43:44,564 INFO L130 PetriNetUnfolder]: For 13663/14115 co-relation queries the response was YES. [2021-10-28 09:43:44,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5658 conditions, 968 events. 338/968 cut-off events. For 13663/14115 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6346 event pairs, 92 based on Foata normal form. 40/964 useless extension candidates. Maximal degree in co-relation 5555. Up to 384 conditions per place. [2021-10-28 09:43:44,605 INFO L132 encePairwiseOnDemand]: 111/124 looper letters, 25 selfloop transitions, 18 changer transitions 10/143 dead transitions. [2021-10-28 09:43:44,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 143 transitions, 1007 flow [2021-10-28 09:43:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:43:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-28 09:43:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1556 transitions. [2021-10-28 09:43:44,609 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8365591397849462 [2021-10-28 09:43:44,610 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1556 transitions. [2021-10-28 09:43:44,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1556 transitions. [2021-10-28 09:43:44,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:44,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1556 transitions. [2021-10-28 09:43:44,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 103.73333333333333) internal successors, (1556), 15 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:44,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:44,625 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:44,625 INFO L186 Difference]: Start difference. First operand has 178 places, 130 transitions, 673 flow. Second operand 15 states and 1556 transitions. [2021-10-28 09:43:44,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 143 transitions, 1007 flow [2021-10-28 09:43:44,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 143 transitions, 912 flow, removed 36 selfloop flow, removed 13 redundant places. [2021-10-28 09:43:44,668 INFO L242 Difference]: Finished difference. Result has 180 places, 131 transitions, 710 flow [2021-10-28 09:43:44,668 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=710, PETRI_PLACES=180, PETRI_TRANSITIONS=131} [2021-10-28 09:43:44,669 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 49 predicate places. [2021-10-28 09:43:44,669 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 131 transitions, 710 flow [2021-10-28 09:43:44,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 102.3076923076923) internal successors, (1330), 13 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:44,670 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:44,670 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] [2021-10-28 09:43:44,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 09:43:44,670 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash 313167365, now seen corresponding path program 4 times [2021-10-28 09:43:44,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:44,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031215187] [2021-10-28 09:43:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:44,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:44,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:44,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:44,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031215187] [2021-10-28 09:43:44,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031215187] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:44,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:44,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 09:43:44,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443003729] [2021-10-28 09:43:44,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:43:44,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:44,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:43:44,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:43:44,985 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 124 [2021-10-28 09:43:44,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 131 transitions, 710 flow. Second operand has 12 states, 12 states have (on average 103.33333333333333) internal successors, (1240), 12 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:44,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:44,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 124 [2021-10-28 09:43:44,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:45,570 INFO L129 PetriNetUnfolder]: 281/1033 cut-off events. [2021-10-28 09:43:45,570 INFO L130 PetriNetUnfolder]: For 12046/12510 co-relation queries the response was YES. [2021-10-28 09:43:45,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5397 conditions, 1033 events. 281/1033 cut-off events. For 12046/12510 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7657 event pairs, 65 based on Foata normal form. 29/1016 useless extension candidates. Maximal degree in co-relation 5295. Up to 225 conditions per place. [2021-10-28 09:43:45,596 INFO L132 encePairwiseOnDemand]: 114/124 looper letters, 33 selfloop transitions, 13 changer transitions 10/147 dead transitions. [2021-10-28 09:43:45,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 147 transitions, 1078 flow [2021-10-28 09:43:45,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:43:45,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 09:43:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1365 transitions. [2021-10-28 09:43:45,601 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8467741935483871 [2021-10-28 09:43:45,601 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1365 transitions. [2021-10-28 09:43:45,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1365 transitions. [2021-10-28 09:43:45,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:45,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1365 transitions. [2021-10-28 09:43:45,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:45,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:45,611 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:45,611 INFO L186 Difference]: Start difference. First operand has 180 places, 131 transitions, 710 flow. Second operand 13 states and 1365 transitions. [2021-10-28 09:43:45,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 147 transitions, 1078 flow [2021-10-28 09:43:45,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 147 transitions, 932 flow, removed 60 selfloop flow, removed 13 redundant places. [2021-10-28 09:43:45,660 INFO L242 Difference]: Finished difference. Result has 180 places, 131 transitions, 683 flow [2021-10-28 09:43:45,661 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=683, PETRI_PLACES=180, PETRI_TRANSITIONS=131} [2021-10-28 09:43:45,661 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 49 predicate places. [2021-10-28 09:43:45,662 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 131 transitions, 683 flow [2021-10-28 09:43:45,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 103.33333333333333) internal successors, (1240), 12 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:45,662 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:45,663 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] [2021-10-28 09:43:45,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 09:43:45,663 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:45,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:45,664 INFO L85 PathProgramCache]: Analyzing trace with hash -623959259, now seen corresponding path program 1 times [2021-10-28 09:43:45,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:45,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549189506] [2021-10-28 09:43:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:45,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:45,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:45,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:45,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549189506] [2021-10-28 09:43:45,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549189506] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:45,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:45,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:43:45,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972993085] [2021-10-28 09:43:45,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:43:45,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:43:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:43:45,782 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-10-28 09:43:45,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 131 transitions, 683 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:45,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:45,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-10-28 09:43:45,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:47,344 INFO L129 PetriNetUnfolder]: 3063/6204 cut-off events. [2021-10-28 09:43:47,344 INFO L130 PetriNetUnfolder]: For 23644/24089 co-relation queries the response was YES. [2021-10-28 09:43:47,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19074 conditions, 6204 events. 3063/6204 cut-off events. For 23644/24089 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 56957 event pairs, 435 based on Foata normal form. 16/5217 useless extension candidates. Maximal degree in co-relation 18977. Up to 1690 conditions per place. [2021-10-28 09:43:47,466 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 29 selfloop transitions, 20 changer transitions 0/168 dead transitions. [2021-10-28 09:43:47,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 168 transitions, 855 flow [2021-10-28 09:43:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:43:47,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-28 09:43:47,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1141 transitions. [2021-10-28 09:43:47,470 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9201612903225806 [2021-10-28 09:43:47,470 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1141 transitions. [2021-10-28 09:43:47,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1141 transitions. [2021-10-28 09:43:47,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:47,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1141 transitions. [2021-10-28 09:43:47,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 114.1) internal successors, (1141), 10 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:47,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:47,478 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:47,478 INFO L186 Difference]: Start difference. First operand has 180 places, 131 transitions, 683 flow. Second operand 10 states and 1141 transitions. [2021-10-28 09:43:47,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 168 transitions, 855 flow [2021-10-28 09:43:47,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 805 flow, removed 17 selfloop flow, removed 12 redundant places. [2021-10-28 09:43:47,585 INFO L242 Difference]: Finished difference. Result has 177 places, 149 transitions, 776 flow [2021-10-28 09:43:47,585 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=776, PETRI_PLACES=177, PETRI_TRANSITIONS=149} [2021-10-28 09:43:47,586 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 46 predicate places. [2021-10-28 09:43:47,586 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 149 transitions, 776 flow [2021-10-28 09:43:47,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:47,586 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:47,587 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:47,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-28 09:43:47,587 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:47,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:47,588 INFO L85 PathProgramCache]: Analyzing trace with hash -395280817, now seen corresponding path program 1 times [2021-10-28 09:43:47,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:47,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139987256] [2021-10-28 09:43:47,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:47,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:47,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:47,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139987256] [2021-10-28 09:43:47,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139987256] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:47,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:47,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:43:47,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773405880] [2021-10-28 09:43:47,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:43:47,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:47,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:43:47,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:43:47,727 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-10-28 09:43:47,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 149 transitions, 776 flow. Second operand has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:47,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:47,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-10-28 09:43:47,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:49,460 INFO L129 PetriNetUnfolder]: 2841/5770 cut-off events. [2021-10-28 09:43:49,461 INFO L130 PetriNetUnfolder]: For 23488/32685 co-relation queries the response was YES. [2021-10-28 09:43:49,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23612 conditions, 5770 events. 2841/5770 cut-off events. For 23488/32685 co-relation queries the response was YES. Maximal size of possible extension queue 892. Compared 53285 event pairs, 150 based on Foata normal form. 434/5384 useless extension candidates. Maximal degree in co-relation 23518. Up to 2867 conditions per place. [2021-10-28 09:43:49,558 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 34 selfloop transitions, 38 changer transitions 0/191 dead transitions. [2021-10-28 09:43:49,558 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 191 transitions, 1200 flow [2021-10-28 09:43:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:43:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 09:43:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2021-10-28 09:43:49,563 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9212158808933002 [2021-10-28 09:43:49,564 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2021-10-28 09:43:49,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2021-10-28 09:43:49,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:49,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2021-10-28 09:43:49,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:49,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:49,575 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:49,575 INFO L186 Difference]: Start difference. First operand has 177 places, 149 transitions, 776 flow. Second operand 13 states and 1485 transitions. [2021-10-28 09:43:49,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 191 transitions, 1200 flow [2021-10-28 09:43:49,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 191 transitions, 1190 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-10-28 09:43:49,757 INFO L242 Difference]: Finished difference. Result has 192 places, 169 transitions, 1059 flow [2021-10-28 09:43:49,758 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1059, PETRI_PLACES=192, PETRI_TRANSITIONS=169} [2021-10-28 09:43:49,759 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 61 predicate places. [2021-10-28 09:43:49,759 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 169 transitions, 1059 flow [2021-10-28 09:43:49,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:49,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:49,760 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] [2021-10-28 09:43:49,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-28 09:43:49,760 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:49,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:49,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1897705082, now seen corresponding path program 1 times [2021-10-28 09:43:49,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:49,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529605715] [2021-10-28 09:43:49,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:49,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:49,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:49,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529605715] [2021-10-28 09:43:49,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529605715] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:49,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:49,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:43:49,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259044652] [2021-10-28 09:43:49,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:43:49,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:49,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:43:49,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:43:49,890 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 124 [2021-10-28 09:43:49,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 169 transitions, 1059 flow. Second operand has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:49,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:49,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 124 [2021-10-28 09:43:49,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:51,457 INFO L129 PetriNetUnfolder]: 1691/5461 cut-off events. [2021-10-28 09:43:51,457 INFO L130 PetriNetUnfolder]: For 29489/35944 co-relation queries the response was YES. [2021-10-28 09:43:51,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23338 conditions, 5461 events. 1691/5461 cut-off events. For 29489/35944 co-relation queries the response was YES. Maximal size of possible extension queue 665. Compared 61194 event pairs, 298 based on Foata normal form. 156/4896 useless extension candidates. Maximal degree in co-relation 23238. Up to 1932 conditions per place. [2021-10-28 09:43:51,526 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 14 selfloop transitions, 11 changer transitions 0/183 dead transitions. [2021-10-28 09:43:51,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 183 transitions, 1239 flow [2021-10-28 09:43:51,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:43:51,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:43:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1025 transitions. [2021-10-28 09:43:51,530 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9184587813620072 [2021-10-28 09:43:51,530 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1025 transitions. [2021-10-28 09:43:51,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1025 transitions. [2021-10-28 09:43:51,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:51,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1025 transitions. [2021-10-28 09:43:51,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:51,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:51,536 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:51,537 INFO L186 Difference]: Start difference. First operand has 192 places, 169 transitions, 1059 flow. Second operand 9 states and 1025 transitions. [2021-10-28 09:43:51,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 183 transitions, 1239 flow [2021-10-28 09:43:51,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 183 transitions, 1136 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-10-28 09:43:51,852 INFO L242 Difference]: Finished difference. Result has 203 places, 177 transitions, 1105 flow [2021-10-28 09:43:51,852 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1105, PETRI_PLACES=203, PETRI_TRANSITIONS=177} [2021-10-28 09:43:51,853 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 72 predicate places. [2021-10-28 09:43:51,853 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 177 transitions, 1105 flow [2021-10-28 09:43:51,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:51,854 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:51,854 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] [2021-10-28 09:43:51,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-28 09:43:51,855 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:51,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:51,856 INFO L85 PathProgramCache]: Analyzing trace with hash 945190230, now seen corresponding path program 1 times [2021-10-28 09:43:51,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:51,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021408268] [2021-10-28 09:43:51,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:51,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:51,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:51,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021408268] [2021-10-28 09:43:51,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021408268] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:51,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:51,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 09:43:51,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854473810] [2021-10-28 09:43:51,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:43:51,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:51,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:43:51,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:43:51,988 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-10-28 09:43:51,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 177 transitions, 1105 flow. Second operand has 8 states, 8 states have (on average 110.125) internal successors, (881), 8 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:51,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:51,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-10-28 09:43:51,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:54,139 INFO L129 PetriNetUnfolder]: 3997/7721 cut-off events. [2021-10-28 09:43:54,140 INFO L130 PetriNetUnfolder]: For 65229/80825 co-relation queries the response was YES. [2021-10-28 09:43:54,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39824 conditions, 7721 events. 3997/7721 cut-off events. For 65229/80825 co-relation queries the response was YES. Maximal size of possible extension queue 1281. Compared 74059 event pairs, 27 based on Foata normal form. 737/7252 useless extension candidates. Maximal degree in co-relation 39718. Up to 3396 conditions per place. [2021-10-28 09:43:54,244 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 28 selfloop transitions, 58 changer transitions 20/217 dead transitions. [2021-10-28 09:43:54,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 217 transitions, 1723 flow [2021-10-28 09:43:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:43:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-28 09:43:54,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1829 transitions. [2021-10-28 09:43:54,250 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.921875 [2021-10-28 09:43:54,250 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1829 transitions. [2021-10-28 09:43:54,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1829 transitions. [2021-10-28 09:43:54,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:54,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1829 transitions. [2021-10-28 09:43:54,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 114.3125) internal successors, (1829), 16 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:54,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:54,261 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:54,261 INFO L186 Difference]: Start difference. First operand has 203 places, 177 transitions, 1105 flow. Second operand 16 states and 1829 transitions. [2021-10-28 09:43:54,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 217 transitions, 1723 flow [2021-10-28 09:43:54,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 217 transitions, 1650 flow, removed 23 selfloop flow, removed 6 redundant places. [2021-10-28 09:43:54,714 INFO L242 Difference]: Finished difference. Result has 216 places, 187 transitions, 1335 flow [2021-10-28 09:43:54,715 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1335, PETRI_PLACES=216, PETRI_TRANSITIONS=187} [2021-10-28 09:43:54,715 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 85 predicate places. [2021-10-28 09:43:54,715 INFO L470 AbstractCegarLoop]: Abstraction has has 216 places, 187 transitions, 1335 flow [2021-10-28 09:43:54,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 110.125) internal successors, (881), 8 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:54,716 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:54,716 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:43:54,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-28 09:43:54,716 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:54,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash -416727991, now seen corresponding path program 1 times [2021-10-28 09:43:54,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:54,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497171981] [2021-10-28 09:43:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:54,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:54,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:54,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:54,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497171981] [2021-10-28 09:43:54,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497171981] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:54,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:54,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 09:43:54,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842770665] [2021-10-28 09:43:54,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:43:54,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:54,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:43:54,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:43:54,896 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 124 [2021-10-28 09:43:54,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 187 transitions, 1335 flow. Second operand has 9 states, 9 states have (on average 110.11111111111111) internal successors, (991), 9 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:54,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:54,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 124 [2021-10-28 09:43:54,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:43:56,857 INFO L129 PetriNetUnfolder]: 3480/7037 cut-off events. [2021-10-28 09:43:56,857 INFO L130 PetriNetUnfolder]: For 77258/99701 co-relation queries the response was YES. [2021-10-28 09:43:56,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40821 conditions, 7037 events. 3480/7037 cut-off events. For 77258/99701 co-relation queries the response was YES. Maximal size of possible extension queue 1281. Compared 70099 event pairs, 0 based on Foata normal form. 757/6596 useless extension candidates. Maximal degree in co-relation 40762. Up to 2931 conditions per place. [2021-10-28 09:43:56,969 INFO L132 encePairwiseOnDemand]: 113/124 looper letters, 22 selfloop transitions, 63 changer transitions 26/219 dead transitions. [2021-10-28 09:43:56,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 219 transitions, 1840 flow [2021-10-28 09:43:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:43:56,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-28 09:43:56,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2153 transitions. [2021-10-28 09:43:56,974 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9138370118845501 [2021-10-28 09:43:56,975 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2153 transitions. [2021-10-28 09:43:56,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2153 transitions. [2021-10-28 09:43:56,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:43:56,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2153 transitions. [2021-10-28 09:43:56,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 113.3157894736842) internal successors, (2153), 19 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:56,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 124.0) internal successors, (2480), 20 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:56,988 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 124.0) internal successors, (2480), 20 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:56,988 INFO L186 Difference]: Start difference. First operand has 216 places, 187 transitions, 1335 flow. Second operand 19 states and 2153 transitions. [2021-10-28 09:43:56,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 219 transitions, 1840 flow [2021-10-28 09:43:59,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 219 transitions, 1335 flow, removed 199 selfloop flow, removed 35 redundant places. [2021-10-28 09:43:59,529 INFO L242 Difference]: Finished difference. Result has 200 places, 183 transitions, 1045 flow [2021-10-28 09:43:59,530 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1045, PETRI_PLACES=200, PETRI_TRANSITIONS=183} [2021-10-28 09:43:59,530 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 69 predicate places. [2021-10-28 09:43:59,530 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 183 transitions, 1045 flow [2021-10-28 09:43:59,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.11111111111111) internal successors, (991), 9 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:59,531 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:43:59,531 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] [2021-10-28 09:43:59,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-28 09:43:59,532 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:43:59,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:43:59,532 INFO L85 PathProgramCache]: Analyzing trace with hash -189438729, now seen corresponding path program 1 times [2021-10-28 09:43:59,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:43:59,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386398644] [2021-10-28 09:43:59,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:43:59,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:43:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:43:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:43:59,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:43:59,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386398644] [2021-10-28 09:43:59,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386398644] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:43:59,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:43:59,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:43:59,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333918434] [2021-10-28 09:43:59,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:43:59,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:43:59,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:43:59,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:43:59,676 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 124 [2021-10-28 09:43:59,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 183 transitions, 1045 flow. Second operand has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:43:59,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:43:59,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 124 [2021-10-28 09:43:59,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:44:01,560 INFO L129 PetriNetUnfolder]: 3909/10332 cut-off events. [2021-10-28 09:44:01,561 INFO L130 PetriNetUnfolder]: For 29643/32199 co-relation queries the response was YES. [2021-10-28 09:44:01,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35299 conditions, 10332 events. 3909/10332 cut-off events. For 29643/32199 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 128366 event pairs, 0 based on Foata normal form. 3/9015 useless extension candidates. Maximal degree in co-relation 35208. Up to 1288 conditions per place. [2021-10-28 09:44:01,643 INFO L132 encePairwiseOnDemand]: 118/124 looper letters, 9 selfloop transitions, 1 changer transitions 21/188 dead transitions. [2021-10-28 09:44:01,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 188 transitions, 1091 flow [2021-10-28 09:44:01,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:44:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 09:44:01,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 786 transitions. [2021-10-28 09:44:01,646 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9055299539170507 [2021-10-28 09:44:01,646 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 786 transitions. [2021-10-28 09:44:01,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 786 transitions. [2021-10-28 09:44:01,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:44:01,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 786 transitions. [2021-10-28 09:44:01,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 112.28571428571429) internal successors, (786), 7 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:44:01,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:44:01,651 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:44:01,651 INFO L186 Difference]: Start difference. First operand has 200 places, 183 transitions, 1045 flow. Second operand 7 states and 786 transitions. [2021-10-28 09:44:01,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 188 transitions, 1091 flow [2021-10-28 09:44:03,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 188 transitions, 968 flow, removed 8 selfloop flow, removed 17 redundant places. [2021-10-28 09:44:03,909 INFO L242 Difference]: Finished difference. Result has 191 places, 167 transitions, 826 flow [2021-10-28 09:44:03,910 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=826, PETRI_PLACES=191, PETRI_TRANSITIONS=167} [2021-10-28 09:44:03,910 INFO L334 CegarLoopForPetriNet]: 131 programPoint places, 60 predicate places. [2021-10-28 09:44:03,910 INFO L470 AbstractCegarLoop]: Abstraction has has 191 places, 167 transitions, 826 flow [2021-10-28 09:44:03,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 111.42857142857143) internal successors, (780), 7 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:44:03,911 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:44:03,911 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] [2021-10-28 09:44:03,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-28 09:44:03,911 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-28 09:44:03,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:44:03,912 INFO L85 PathProgramCache]: Analyzing trace with hash 230965957, now seen corresponding path program 2 times [2021-10-28 09:44:03,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:44:03,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126121395] [2021-10-28 09:44:03,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:44:03,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:44:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:44:03,966 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:44:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:44:04,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:44:04,090 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:44:04,091 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:44:04,093 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:44:04,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 09:44:04,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 09:44:04,094 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 09:44:04,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-28 09:44:04,095 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:44:04,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-28 09:44:04,099 INFO L731 BasicCegarLoop]: Path program histogram: [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:44:04,105 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 09:44:04,105 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:44:04,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:44:04 BasicIcfg [2021-10-28 09:44:04,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:44:04,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:44:04,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:44:04,319 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:44:04,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:43:30" (3/4) ... [2021-10-28 09:44:04,321 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 09:44:04,511 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:44:04,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:44:04,513 INFO L168 Benchmark]: Toolchain (without parser) took 36949.18 ms. Allocated memory was 109.1 MB in the beginning and 8.6 GB in the end (delta: 8.4 GB). Free memory was 71.1 MB in the beginning and 7.7 GB in the end (delta: -7.7 GB). Peak memory consumption was 790.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:44:04,514 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 109.1 MB. Free memory is still 88.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:44:04,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.75 ms. Allocated memory is still 109.1 MB. Free memory was 70.9 MB in the beginning and 71.9 MB in the end (delta: -934.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:44:04,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.03 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 69.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:44:04,515 INFO L168 Benchmark]: Boogie Preprocessor took 64.67 ms. Allocated memory is still 109.1 MB. Free memory was 68.6 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:44:04,516 INFO L168 Benchmark]: RCFGBuilder took 2029.30 ms. Allocated memory was 109.1 MB in the beginning and 146.8 MB in the end (delta: 37.7 MB). Free memory was 66.5 MB in the beginning and 84.8 MB in the end (delta: -18.3 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:44:04,520 INFO L168 Benchmark]: TraceAbstraction took 33815.37 ms. Allocated memory was 146.8 MB in the beginning and 8.6 GB in the end (delta: 8.4 GB). Free memory was 84.8 MB in the beginning and 7.8 GB in the end (delta: -7.7 GB). Peak memory consumption was 729.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:44:04,520 INFO L168 Benchmark]: Witness Printer took 193.57 ms. Allocated memory is still 8.6 GB. Free memory was 7.8 GB in the beginning and 7.7 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:44:04,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 109.1 MB. Free memory is still 88.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 759.75 ms. Allocated memory is still 109.1 MB. Free memory was 70.9 MB in the beginning and 71.9 MB in the end (delta: -934.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.03 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 69.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.67 ms. Allocated memory is still 109.1 MB. Free memory was 68.6 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2029.30 ms. Allocated memory was 109.1 MB in the beginning and 146.8 MB in the end (delta: 37.7 MB). Free memory was 66.5 MB in the beginning and 84.8 MB in the end (delta: -18.3 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 33815.37 ms. Allocated memory was 146.8 MB in the beginning and 8.6 GB in the end (delta: 8.4 GB). Free memory was 84.8 MB in the beginning and 7.8 GB in the end (delta: -7.7 GB). Peak memory consumption was 729.2 MB. Max. memory is 16.1 GB. * Witness Printer took 193.57 ms. Allocated memory is still 8.6 GB. Free memory was 7.8 GB in the beginning and 7.7 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0] [L714] 0 int a = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0] [L715] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0] [L716] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0] [L718] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L720] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L722] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0] [L723] 0 _Bool z$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0] [L724] 0 int z$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0] [L725] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L726] 0 _Bool z$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0] [L727] 0 _Bool z$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0] [L728] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L729] 0 _Bool z$r_buff0_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0] [L730] 0 _Bool z$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0] [L731] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L732] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L733] 0 _Bool z$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0] [L734] 0 _Bool z$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0] [L735] 0 _Bool z$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0] [L736] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L737] 0 int z$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0] [L738] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L739] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L740] 0 _Bool z$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L741] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L742] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L834] 0 pthread_t t1517; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L835] FCALL, FORK 0 pthread_create(&t1517, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t1518; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L837] FCALL, FORK 0 pthread_create(&t1518, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1519; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L839] FCALL, FORK 0 pthread_create(&t1519, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1520; VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L841] FCALL, FORK 0 pthread_create(&t1520, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 4 z$w_buff1 = z$w_buff0 [L797] 4 z$w_buff0 = 2 [L798] 4 z$w_buff1_used = z$w_buff0_used [L799] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L801] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L802] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L803] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L804] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L805] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L783] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L784] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L784] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L785] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L785] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L812] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L812] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L813] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L813] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L814] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L815] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L816] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L819] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L855] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L856] 0 z$flush_delayed = weak$$choice2 [L857] 0 z$mem_tmp = z [L858] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L858] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L866] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L866] 0 z = z$flush_delayed ? z$mem_tmp : z [L867] 0 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L18] 0 reach_error() VAL [__unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=53, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 839]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 841]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 158 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 33.4s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 27.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 201 SDtfs, 698 SDslu, 804 SDs, 0 SdLazy, 1523 SolverSat, 390 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1335occurred in iteration=18, InterpolantAutomatonStates: 239, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1766 NumberOfCodeBlocks, 1766 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1651 ConstructedInterpolants, 0 QuantifiedInterpolants, 9168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:44:04,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2638768b-24ec-4e9d-811f-002ecd3b009f/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...