./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --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_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD --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 a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:48:19,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:48:19,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:48:19,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:48:19,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:48:19,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:48:19,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:48:19,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:48:19,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:48:19,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:48:19,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:48:19,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:48:19,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:48:19,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:48:19,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:48:19,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:48:19,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:48:19,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:48:19,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:48:19,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:48:19,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:48:19,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:48:19,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:48:19,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:48:19,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:48:19,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:48:19,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:48:19,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:48:19,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:48:19,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:48:19,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:48:19,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:48:19,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:48:19,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:48:19,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:48:19,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:48:19,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:48:19,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:48:19,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:48:19,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:48:19,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:48:19,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:48:19,366 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:48:19,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:48:19,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:48:19,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:48:19,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:48:19,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:48:19,369 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:48:19,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:48:19,370 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:48:19,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:48:19,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:48:19,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:48:19,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:48:19,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:48:19,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:48:19,372 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:48:19,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:48:19,372 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:48:19,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:48:19,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:48:19,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:48:19,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:48:19,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:19,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:48:19,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:48:19,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:48:19,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:48:19,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:48:19,376 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:48:19,376 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:48:19,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:48:19,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:48:19,377 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_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1648913be4b4e88120f8ece4966a58804b334c451c87254dfc42f8e396f396f [2021-10-28 23:48:19,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:48:19,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:48:19,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:48:19,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:48:19,652 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:48:19,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2021-10-28 23:48:19,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/data/34e2e0e0c/3c554418fe99460cac6e27272849fdfd/FLAG898bfdf1d [2021-10-28 23:48:20,184 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:48:20,185 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2021-10-28 23:48:20,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/data/34e2e0e0c/3c554418fe99460cac6e27272849fdfd/FLAG898bfdf1d [2021-10-28 23:48:20,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/data/34e2e0e0c/3c554418fe99460cac6e27272849fdfd [2021-10-28 23:48:20,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:48:20,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:48:20,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:20,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:48:20,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:48:20,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:20,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d55a333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20, skipping insertion in model container [2021-10-28 23:48:20,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:20,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:48:20,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:48:20,815 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_5b5598cc-65f4-45d9-aa53-74beb467a5aa/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2021-10-28 23:48:20,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:20,830 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:48:20,859 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_5b5598cc-65f4-45d9-aa53-74beb467a5aa/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c[3271,3284] [2021-10-28 23:48:20,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:20,875 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:48:20,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20 WrapperNode [2021-10-28 23:48:20,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:20,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:48:20,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:48:20,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:48:20,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:20,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:20,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:48:20,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:48:20,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:48:20,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:48:20,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:20,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:20,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:21,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:21,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:21,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:21,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:21,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:48:21,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:48:21,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:48:21,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:48:21,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (1/1) ... [2021-10-28 23:48:21,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:48:21,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:21,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:21,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:48:21,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:48:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:48:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:48:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:48:21,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:48:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 23:48:21,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 23:48:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 23:48:21,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 23:48:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-28 23:48:21,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-28 23:48:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:48:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-10-28 23:48:21,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-10-28 23:48:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 23:48:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 23:48:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:48:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:48:21,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:48:21,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:48:21,164 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 23:48:22,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:48:22,010 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-10-28 23:48:22,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:22 BoogieIcfgContainer [2021-10-28 23:48:22,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:48:22,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:48:22,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:48:22,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:48:22,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:48:20" (1/3) ... [2021-10-28 23:48:22,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1498d362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:48:22, skipping insertion in model container [2021-10-28 23:48:22,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:20" (2/3) ... [2021-10-28 23:48:22,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1498d362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:48:22, skipping insertion in model container [2021-10-28 23:48:22,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:22" (3/3) ... [2021-10-28 23:48:22,042 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2021-10-28 23:48:22,048 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:48:22,048 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:48:22,048 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:48:22,048 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:48:22,092 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,093 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,094 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,094 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,094 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,094 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,095 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,096 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,096 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,098 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,099 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,099 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,099 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,100 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,100 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,100 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,100 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,101 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,101 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,101 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,102 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,102 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,103 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,103 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,103 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,103 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,104 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,105 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,105 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,106 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,106 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,107 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,108 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,108 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,108 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,108 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,109 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,109 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,109 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,110 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,110 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,110 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,111 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,111 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,111 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,112 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,112 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,112 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,112 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,112 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,113 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,113 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,113 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,113 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,114 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,114 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,114 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,114 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,115 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,115 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,115 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,115 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,116 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,116 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,116 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,116 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,117 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,117 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,117 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,117 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,117 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,118 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,118 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,118 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,119 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,119 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,119 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,119 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,120 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,120 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,120 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,120 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,121 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,121 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,121 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,121 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,121 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,122 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,122 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,122 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,122 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,123 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,123 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,123 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,123 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,124 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,124 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,124 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,124 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,125 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,125 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,125 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,125 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,125 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,126 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,126 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,127 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,127 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,130 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,130 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,131 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,131 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,131 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,131 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,131 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,132 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,134 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,134 WARN L313 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,136 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,136 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,137 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,137 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,137 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,137 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,138 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,138 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,138 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,140 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,140 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,140 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,140 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,141 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,143 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,143 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,144 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,144 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,144 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,144 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,145 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,145 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork4_~i~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,145 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:48:22,157 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-10-28 23:48:22,208 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:48:22,215 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 23:48:22,215 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 23:48:22,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 181 transitions, 402 flow [2021-10-28 23:48:22,331 INFO L129 PetriNetUnfolder]: 14/176 cut-off events. [2021-10-28 23:48:22,331 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-10-28 23:48:22,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 176 events. 14/176 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 139 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2021-10-28 23:48:22,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 181 transitions, 402 flow [2021-10-28 23:48:22,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 162 transitions, 354 flow [2021-10-28 23:48:22,431 INFO L129 PetriNetUnfolder]: 14/161 cut-off events. [2021-10-28 23:48:22,432 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-10-28 23:48:22,432 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:22,433 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:22,433 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-28 23:48:22,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:22,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1862772422, now seen corresponding path program 1 times [2021-10-28 23:48:22,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:22,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728851988] [2021-10-28 23:48:22,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:22,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:22,863 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 23:48:22,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:22,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728851988] [2021-10-28 23:48:22,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728851988] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:22,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:22,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:48:22,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279964416] [2021-10-28 23:48:22,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:48:22,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:22,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:48:22,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:48:22,906 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 181 [2021-10-28 23:48:22,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 162 transitions, 354 flow. Second operand has 2 states, 2 states have (on average 172.0) internal successors, (344), 2 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 23:48:22,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:22,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 181 [2021-10-28 23:48:22,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:22,955 INFO L129 PetriNetUnfolder]: 5/153 cut-off events. [2021-10-28 23:48:22,956 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-10-28 23:48:22,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 153 events. 5/153 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 119 event pairs, 0 based on Foata normal form. 9/153 useless extension candidates. Maximal degree in co-relation 168. Up to 2 conditions per place. [2021-10-28 23:48:22,959 INFO L132 encePairwiseOnDemand]: 172/181 looper letters, 0 selfloop transitions, 0 changer transitions 4/153 dead transitions. [2021-10-28 23:48:22,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 153 transitions, 336 flow [2021-10-28 23:48:22,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:48:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 23:48:22,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 351 transitions. [2021-10-28 23:48:22,975 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9696132596685083 [2021-10-28 23:48:22,976 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 351 transitions. [2021-10-28 23:48:22,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 351 transitions. [2021-10-28 23:48:22,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:22,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 351 transitions. [2021-10-28 23:48:22,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 23:48:22,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 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 23:48:22,995 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 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 23:48:22,997 INFO L186 Difference]: Start difference. First operand has 164 places, 162 transitions, 354 flow. Second operand 2 states and 351 transitions. [2021-10-28 23:48:22,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 153 transitions, 336 flow [2021-10-28 23:48:23,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 153 transitions, 316 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-10-28 23:48:23,010 INFO L242 Difference]: Finished difference. Result has 155 places, 149 transitions, 308 flow [2021-10-28 23:48:23,013 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=308, PETRI_PLACES=155, PETRI_TRANSITIONS=149} [2021-10-28 23:48:23,014 INFO L334 CegarLoopForPetriNet]: 164 programPoint places, -9 predicate places. [2021-10-28 23:48:23,014 INFO L470 AbstractCegarLoop]: Abstraction has has 155 places, 149 transitions, 308 flow [2021-10-28 23:48:23,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 172.0) internal successors, (344), 2 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 23:48:23,015 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:23,015 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:23,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:48:23,016 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-28 23:48:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1789341884, now seen corresponding path program 1 times [2021-10-28 23:48:23,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:23,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692677079] [2021-10-28 23:48:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:23,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:23,472 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 23:48:23,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:23,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692677079] [2021-10-28 23:48:23,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692677079] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:23,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:23,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:48:23,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810816300] [2021-10-28 23:48:23,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:23,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:23,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:23,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:23,484 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 181 [2021-10-28 23:48:23,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 149 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 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 23:48:23,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:23,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 181 [2021-10-28 23:48:23,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:23,933 INFO L129 PetriNetUnfolder]: 1083/1727 cut-off events. [2021-10-28 23:48:23,934 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:48:23,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3119 conditions, 1727 events. 1083/1727 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 8713 event pairs, 274 based on Foata normal form. 0/1093 useless extension candidates. Maximal degree in co-relation 3116. Up to 831 conditions per place. [2021-10-28 23:48:23,990 INFO L132 encePairwiseOnDemand]: 175/181 looper letters, 37 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2021-10-28 23:48:23,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 159 transitions, 412 flow [2021-10-28 23:48:23,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:48:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 23:48:23,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 853 transitions. [2021-10-28 23:48:24,000 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.785451197053407 [2021-10-28 23:48:24,000 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 853 transitions. [2021-10-28 23:48:24,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 853 transitions. [2021-10-28 23:48:24,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:24,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 853 transitions. [2021-10-28 23:48:24,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 23:48:24,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 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 23:48:24,015 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 181.0) internal successors, (1267), 7 states have internal predecessors, (1267), 0 states have call successors, (0), 0 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 23:48:24,015 INFO L186 Difference]: Start difference. First operand has 155 places, 149 transitions, 308 flow. Second operand 6 states and 853 transitions. [2021-10-28 23:48:24,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 159 transitions, 412 flow [2021-10-28 23:48:24,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 159 transitions, 412 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 23:48:24,028 INFO L242 Difference]: Finished difference. Result has 157 places, 150 transitions, 326 flow [2021-10-28 23:48:24,029 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=157, PETRI_TRANSITIONS=150} [2021-10-28 23:48:24,029 INFO L334 CegarLoopForPetriNet]: 164 programPoint places, -7 predicate places. [2021-10-28 23:48:24,030 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 150 transitions, 326 flow [2021-10-28 23:48:24,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 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 23:48:24,031 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:24,032 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:24,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:48:24,033 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-28 23:48:24,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:24,036 INFO L85 PathProgramCache]: Analyzing trace with hash 335838940, now seen corresponding path program 1 times [2021-10-28 23:48:24,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:24,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693783745] [2021-10-28 23:48:24,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:24,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:24,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:24,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693783745] [2021-10-28 23:48:24,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693783745] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:24,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:24,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:48:24,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58654759] [2021-10-28 23:48:24,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:48:24,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:24,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:48:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:48:24,312 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 181 [2021-10-28 23:48:24,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 150 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 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 23:48:24,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:24,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 181 [2021-10-28 23:48:24,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:24,816 INFO L129 PetriNetUnfolder]: 1094/1914 cut-off events. [2021-10-28 23:48:24,817 INFO L130 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2021-10-28 23:48:24,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3557 conditions, 1914 events. 1094/1914 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 10810 event pairs, 566 based on Foata normal form. 27/1302 useless extension candidates. Maximal degree in co-relation 3552. Up to 1205 conditions per place. [2021-10-28 23:48:24,857 INFO L132 encePairwiseOnDemand]: 172/181 looper letters, 27 selfloop transitions, 6 changer transitions 15/169 dead transitions. [2021-10-28 23:48:24,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 169 transitions, 464 flow [2021-10-28 23:48:24,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:48:24,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 23:48:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1192 transitions. [2021-10-28 23:48:24,862 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8232044198895028 [2021-10-28 23:48:24,863 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1192 transitions. [2021-10-28 23:48:24,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1192 transitions. [2021-10-28 23:48:24,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:24,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1192 transitions. [2021-10-28 23:48:24,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 149.0) internal successors, (1192), 8 states have internal predecessors, (1192), 0 states have call successors, (0), 0 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 23:48:24,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 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 23:48:24,918 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 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 23:48:24,918 INFO L186 Difference]: Start difference. First operand has 157 places, 150 transitions, 326 flow. Second operand 8 states and 1192 transitions. [2021-10-28 23:48:24,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 169 transitions, 464 flow [2021-10-28 23:48:24,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 169 transitions, 455 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 23:48:24,928 INFO L242 Difference]: Finished difference. Result has 163 places, 151 transitions, 342 flow [2021-10-28 23:48:24,929 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=342, PETRI_PLACES=163, PETRI_TRANSITIONS=151} [2021-10-28 23:48:24,929 INFO L334 CegarLoopForPetriNet]: 164 programPoint places, -1 predicate places. [2021-10-28 23:48:24,930 INFO L470 AbstractCegarLoop]: Abstraction has has 163 places, 151 transitions, 342 flow [2021-10-28 23:48:24,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 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 23:48:24,931 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:24,931 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:24,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:48:24,932 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-28 23:48:24,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:24,934 INFO L85 PathProgramCache]: Analyzing trace with hash 229656296, now seen corresponding path program 1 times [2021-10-28 23:48:24,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:24,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743584857] [2021-10-28 23:48:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:24,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:48:25,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:25,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743584857] [2021-10-28 23:48:25,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743584857] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:25,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019194491] [2021-10-28 23:48:25,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:25,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:25,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:25,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:25,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:48:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:25,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:48:25,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:25,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:48:25,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019194491] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:25,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:48:25,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 23:48:25,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915046556] [2021-10-28 23:48:25,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:48:25,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:25,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:48:25,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:48:25,796 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 181 [2021-10-28 23:48:25,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 151 transitions, 342 flow. Second operand has 10 states, 10 states have (on average 145.8) internal successors, (1458), 10 states have internal predecessors, (1458), 0 states have call successors, (0), 0 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 23:48:25,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:25,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 181 [2021-10-28 23:48:25,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:26,424 INFO L129 PetriNetUnfolder]: 1359/2180 cut-off events. [2021-10-28 23:48:26,424 INFO L130 PetriNetUnfolder]: For 305/399 co-relation queries the response was YES. [2021-10-28 23:48:26,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4316 conditions, 2180 events. 1359/2180 cut-off events. For 305/399 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11377 event pairs, 490 based on Foata normal form. 94/1639 useless extension candidates. Maximal degree in co-relation 4308. Up to 1111 conditions per place. [2021-10-28 23:48:26,477 INFO L132 encePairwiseOnDemand]: 173/181 looper letters, 35 selfloop transitions, 7 changer transitions 0/164 dead transitions. [2021-10-28 23:48:26,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 456 flow [2021-10-28 23:48:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:48:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 23:48:26,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1187 transitions. [2021-10-28 23:48:26,483 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8197513812154696 [2021-10-28 23:48:26,484 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1187 transitions. [2021-10-28 23:48:26,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1187 transitions. [2021-10-28 23:48:26,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:26,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1187 transitions. [2021-10-28 23:48:26,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 148.375) internal successors, (1187), 8 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:26,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 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 23:48:26,497 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 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 23:48:26,497 INFO L186 Difference]: Start difference. First operand has 163 places, 151 transitions, 342 flow. Second operand 8 states and 1187 transitions. [2021-10-28 23:48:26,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 456 flow [2021-10-28 23:48:26,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 164 transitions, 440 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-10-28 23:48:26,505 INFO L242 Difference]: Finished difference. Result has 164 places, 153 transitions, 356 flow [2021-10-28 23:48:26,506 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=356, PETRI_PLACES=164, PETRI_TRANSITIONS=153} [2021-10-28 23:48:26,506 INFO L334 CegarLoopForPetriNet]: 164 programPoint places, 0 predicate places. [2021-10-28 23:48:26,507 INFO L470 AbstractCegarLoop]: Abstraction has has 164 places, 153 transitions, 356 flow [2021-10-28 23:48:26,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.8) internal successors, (1458), 10 states have internal predecessors, (1458), 0 states have call successors, (0), 0 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 23:48:26,508 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:26,509 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:26,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 23:48:26,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:26,735 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-28 23:48:26,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:26,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1553810020, now seen corresponding path program 1 times [2021-10-28 23:48:26,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:26,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366422914] [2021-10-28 23:48:26,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:26,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:48:26,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:26,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366422914] [2021-10-28 23:48:26,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366422914] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:26,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031240908] [2021-10-28 23:48:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:26,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:26,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:26,863 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:26,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:48:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:27,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:48:27,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:48:27,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031240908] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:27,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:48:27,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 23:48:27,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699457434] [2021-10-28 23:48:27,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:48:27,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:27,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:48:27,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:48:27,499 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 181 [2021-10-28 23:48:27,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 356 flow. Second operand has 10 states, 10 states have (on average 145.9) internal successors, (1459), 10 states have internal predecessors, (1459), 0 states have call successors, (0), 0 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 23:48:27,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:27,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 181 [2021-10-28 23:48:27,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:28,139 INFO L129 PetriNetUnfolder]: 1410/2980 cut-off events. [2021-10-28 23:48:28,144 INFO L130 PetriNetUnfolder]: For 251/443 co-relation queries the response was YES. [2021-10-28 23:48:28,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5204 conditions, 2980 events. 1410/2980 cut-off events. For 251/443 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 21695 event pairs, 525 based on Foata normal form. 192/2648 useless extension candidates. Maximal degree in co-relation 5196. Up to 1109 conditions per place. [2021-10-28 23:48:28,190 INFO L132 encePairwiseOnDemand]: 173/181 looper letters, 35 selfloop transitions, 7 changer transitions 0/165 dead transitions. [2021-10-28 23:48:28,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 165 transitions, 468 flow [2021-10-28 23:48:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:48:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 23:48:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1187 transitions. [2021-10-28 23:48:28,196 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8197513812154696 [2021-10-28 23:48:28,196 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1187 transitions. [2021-10-28 23:48:28,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1187 transitions. [2021-10-28 23:48:28,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:28,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1187 transitions. [2021-10-28 23:48:28,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 148.375) internal successors, (1187), 8 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:48:28,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 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 23:48:28,206 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 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 23:48:28,206 INFO L186 Difference]: Start difference. First operand has 164 places, 153 transitions, 356 flow. Second operand 8 states and 1187 transitions. [2021-10-28 23:48:28,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 165 transitions, 468 flow [2021-10-28 23:48:28,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 165 transitions, 458 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-28 23:48:28,213 INFO L242 Difference]: Finished difference. Result has 167 places, 154 transitions, 368 flow [2021-10-28 23:48:28,213 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=368, PETRI_PLACES=167, PETRI_TRANSITIONS=154} [2021-10-28 23:48:28,214 INFO L334 CegarLoopForPetriNet]: 164 programPoint places, 3 predicate places. [2021-10-28 23:48:28,214 INFO L470 AbstractCegarLoop]: Abstraction has has 167 places, 154 transitions, 368 flow [2021-10-28 23:48:28,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 145.9) internal successors, (1459), 10 states have internal predecessors, (1459), 0 states have call successors, (0), 0 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 23:48:28,215 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:28,215 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:28,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:28,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:28,430 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-28 23:48:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:28,431 INFO L85 PathProgramCache]: Analyzing trace with hash -859310544, now seen corresponding path program 1 times [2021-10-28 23:48:28,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:28,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433101485] [2021-10-28 23:48:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:28,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:48:28,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:28,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433101485] [2021-10-28 23:48:28,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433101485] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:28,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:28,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:48:28,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094520730] [2021-10-28 23:48:28,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:48:28,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:28,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:48:28,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:48:28,522 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 181 [2021-10-28 23:48:28,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 154 transitions, 368 flow. Second operand has 5 states, 5 states have (on average 152.6) internal successors, (763), 5 states have internal predecessors, (763), 0 states have call successors, (0), 0 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 23:48:28,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:28,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 181 [2021-10-28 23:48:28,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:30,253 INFO L129 PetriNetUnfolder]: 5743/9227 cut-off events. [2021-10-28 23:48:30,253 INFO L130 PetriNetUnfolder]: For 1670/2813 co-relation queries the response was YES. [2021-10-28 23:48:30,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19458 conditions, 9227 events. 5743/9227 cut-off events. For 1670/2813 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 72262 event pairs, 2372 based on Foata normal form. 1143/9775 useless extension candidates. Maximal degree in co-relation 19449. Up to 3788 conditions per place. [2021-10-28 23:48:30,420 INFO L132 encePairwiseOnDemand]: 174/181 looper letters, 54 selfloop transitions, 8 changer transitions 0/193 dead transitions. [2021-10-28 23:48:30,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 193 transitions, 593 flow [2021-10-28 23:48:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:48:30,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:48:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 806 transitions. [2021-10-28 23:48:30,424 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8906077348066298 [2021-10-28 23:48:30,424 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 806 transitions. [2021-10-28 23:48:30,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 806 transitions. [2021-10-28 23:48:30,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:30,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 806 transitions. [2021-10-28 23:48:30,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 161.2) internal successors, (806), 5 states have internal predecessors, (806), 0 states have call successors, (0), 0 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 23:48:30,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 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 23:48:30,431 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 0 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 23:48:30,431 INFO L186 Difference]: Start difference. First operand has 167 places, 154 transitions, 368 flow. Second operand 5 states and 806 transitions. [2021-10-28 23:48:30,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 193 transitions, 593 flow [2021-10-28 23:48:30,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 193 transitions, 581 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 23:48:30,439 INFO L242 Difference]: Finished difference. Result has 168 places, 161 transitions, 414 flow [2021-10-28 23:48:30,439 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=414, PETRI_PLACES=168, PETRI_TRANSITIONS=161} [2021-10-28 23:48:30,439 INFO L334 CegarLoopForPetriNet]: 164 programPoint places, 4 predicate places. [2021-10-28 23:48:30,440 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 161 transitions, 414 flow [2021-10-28 23:48:30,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 152.6) internal successors, (763), 5 states have internal predecessors, (763), 0 states have call successors, (0), 0 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 23:48:30,442 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:30,442 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:30,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:48:30,443 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-28 23:48:30,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:30,444 INFO L85 PathProgramCache]: Analyzing trace with hash 710421756, now seen corresponding path program 2 times [2021-10-28 23:48:30,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:30,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486876706] [2021-10-28 23:48:30,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:30,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:30,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:48:30,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:30,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486876706] [2021-10-28 23:48:30,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486876706] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:48:30,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064312394] [2021-10-28 23:48:30,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:48:30,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:48:30,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:30,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:48:30,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:48:30,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:48:30,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:48:30,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:48:30,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:48:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:48:31,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064312394] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:31,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:48:31,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-10-28 23:48:31,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759099661] [2021-10-28 23:48:31,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:48:31,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:31,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:48:31,333 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 181 [2021-10-28 23:48:31,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 161 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 0 states have call successors, (0), 0 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 23:48:31,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:31,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 181 [2021-10-28 23:48:31,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:32,383 INFO L129 PetriNetUnfolder]: 2495/4814 cut-off events. [2021-10-28 23:48:32,384 INFO L130 PetriNetUnfolder]: For 2025/2649 co-relation queries the response was YES. [2021-10-28 23:48:32,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10705 conditions, 4814 events. 2495/4814 cut-off events. For 2025/2649 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 38077 event pairs, 1169 based on Foata normal form. 586/5119 useless extension candidates. Maximal degree in co-relation 10693. Up to 1746 conditions per place. [2021-10-28 23:48:32,565 INFO L132 encePairwiseOnDemand]: 173/181 looper letters, 37 selfloop transitions, 9 changer transitions 0/170 dead transitions. [2021-10-28 23:48:32,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 170 transitions, 534 flow [2021-10-28 23:48:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:48:32,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-28 23:48:32,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1123 transitions. [2021-10-28 23:48:32,570 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7755524861878453 [2021-10-28 23:48:32,570 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1123 transitions. [2021-10-28 23:48:32,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1123 transitions. [2021-10-28 23:48:32,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:32,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1123 transitions. [2021-10-28 23:48:32,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 140.375) internal successors, (1123), 8 states have internal predecessors, (1123), 0 states have call successors, (0), 0 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 23:48:32,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 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 23:48:32,579 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 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 23:48:32,579 INFO L186 Difference]: Start difference. First operand has 168 places, 161 transitions, 414 flow. Second operand 8 states and 1123 transitions. [2021-10-28 23:48:32,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 170 transitions, 534 flow [2021-10-28 23:48:32,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 170 transitions, 534 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 23:48:32,588 INFO L242 Difference]: Finished difference. Result has 176 places, 161 transitions, 438 flow [2021-10-28 23:48:32,589 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=438, PETRI_PLACES=176, PETRI_TRANSITIONS=161} [2021-10-28 23:48:32,589 INFO L334 CegarLoopForPetriNet]: 164 programPoint places, 12 predicate places. [2021-10-28 23:48:32,590 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 161 transitions, 438 flow [2021-10-28 23:48:32,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 0 states have call successors, (0), 0 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 23:48:32,590 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:48:32,591 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:32,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:48:32,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-28 23:48:32,806 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-28 23:48:32,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:32,807 INFO L85 PathProgramCache]: Analyzing trace with hash -451314392, now seen corresponding path program 1 times [2021-10-28 23:48:32,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:32,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302595085] [2021-10-28 23:48:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:32,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:48:33,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:33,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302595085] [2021-10-28 23:48:33,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302595085] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:33,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:33,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:48:33,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180928862] [2021-10-28 23:48:33,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:48:33,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:33,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:48:33,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:48:33,009 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 181 [2021-10-28 23:48:33,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 161 transitions, 438 flow. Second operand has 8 states, 8 states have (on average 134.625) internal successors, (1077), 8 states have internal predecessors, (1077), 0 states have call successors, (0), 0 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 23:48:33,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:48:33,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 181 [2021-10-28 23:48:33,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:48:33,344 INFO L129 PetriNetUnfolder]: 532/1409 cut-off events. [2021-10-28 23:48:33,344 INFO L130 PetriNetUnfolder]: For 824/984 co-relation queries the response was YES. [2021-10-28 23:48:33,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3125 conditions, 1409 events. 532/1409 cut-off events. For 824/984 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 9737 event pairs, 161 based on Foata normal form. 201/1520 useless extension candidates. Maximal degree in co-relation 3111. Up to 364 conditions per place. [2021-10-28 23:48:33,358 INFO L132 encePairwiseOnDemand]: 172/181 looper letters, 0 selfloop transitions, 0 changer transitions 147/147 dead transitions. [2021-10-28 23:48:33,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 147 transitions, 499 flow [2021-10-28 23:48:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:48:33,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:48:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1205 transitions. [2021-10-28 23:48:33,364 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7397176181706568 [2021-10-28 23:48:33,364 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1205 transitions. [2021-10-28 23:48:33,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1205 transitions. [2021-10-28 23:48:33,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:33,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1205 transitions. [2021-10-28 23:48:33,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 133.88888888888889) internal successors, (1205), 9 states have internal predecessors, (1205), 0 states have call successors, (0), 0 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 23:48:33,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 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 23:48:33,375 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 181.0) internal successors, (1810), 10 states have internal predecessors, (1810), 0 states have call successors, (0), 0 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 23:48:33,375 INFO L186 Difference]: Start difference. First operand has 176 places, 161 transitions, 438 flow. Second operand 9 states and 1205 transitions. [2021-10-28 23:48:33,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 147 transitions, 499 flow [2021-10-28 23:48:33,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 147 transitions, 480 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-28 23:48:33,380 INFO L242 Difference]: Finished difference. Result has 156 places, 0 transitions, 0 flow [2021-10-28 23:48:33,381 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=156, PETRI_TRANSITIONS=0} [2021-10-28 23:48:33,381 INFO L334 CegarLoopForPetriNet]: 164 programPoint places, -8 predicate places. [2021-10-28 23:48:33,381 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 0 transitions, 0 flow [2021-10-28 23:48:33,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 134.625) internal successors, (1077), 8 states have internal predecessors, (1077), 0 states have call successors, (0), 0 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 23:48:33,384 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:48:33,385 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:48:33,385 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:48:33,385 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 23:48:33,386 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-28 23:48:33,386 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION [2021-10-28 23:48:33,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:48:33,389 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:33,392 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:48:33,392 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:48:33,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:48:33 BasicIcfg [2021-10-28 23:48:33,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:48:33,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:48:33,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:48:33,396 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:48:33,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:22" (3/4) ... [2021-10-28 23:48:33,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:48:33,412 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 23:48:33,412 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 23:48:33,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 23:48:33,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-10-28 23:48:33,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2021-10-28 23:48:33,423 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-10-28 23:48:33,423 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:48:33,424 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:48:33,424 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:48:33,485 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:48:33,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:48:33,488 INFO L168 Benchmark]: Toolchain (without parser) took 12899.59 ms. Allocated memory was 107.0 MB in the beginning and 847.2 MB in the end (delta: 740.3 MB). Free memory was 74.2 MB in the beginning and 461.7 MB in the end (delta: -387.5 MB). Peak memory consumption was 352.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:33,488 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:48:33,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.68 ms. Allocated memory is still 107.0 MB. Free memory was 73.9 MB in the beginning and 79.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:33,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.40 ms. Allocated memory is still 107.0 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:33,490 INFO L168 Benchmark]: Boogie Preprocessor took 71.34 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 75.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:33,490 INFO L168 Benchmark]: RCFGBuilder took 968.74 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.5 MB in the beginning and 103.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:33,491 INFO L168 Benchmark]: TraceAbstraction took 11359.92 ms. Allocated memory was 130.0 MB in the beginning and 847.2 MB in the end (delta: 717.2 MB). Free memory was 104.1 MB in the beginning and 465.9 MB in the end (delta: -361.8 MB). Peak memory consumption was 354.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:33,491 INFO L168 Benchmark]: Witness Printer took 91.09 ms. Allocated memory is still 847.2 MB. Free memory was 465.9 MB in the beginning and 461.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:48:33,494 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 107.0 MB. Free memory is still 61.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 286.68 ms. Allocated memory is still 107.0 MB. Free memory was 73.9 MB in the beginning and 79.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.40 ms. Allocated memory is still 107.0 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.34 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 75.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 968.74 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.5 MB in the beginning and 103.4 MB in the end (delta: -27.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11359.92 ms. Allocated memory was 130.0 MB in the beginning and 847.2 MB in the end (delta: 717.2 MB). Free memory was 104.1 MB in the beginning and 465.9 MB in the end (delta: -361.8 MB). Peak memory consumption was 354.0 MB. Max. memory is 16.1 GB. * Witness Printer took 91.09 ms. Allocated memory is still 847.2 MB. Free memory was 465.9 MB in the beginning and 461.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 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 - PositiveResult [Line: 134]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 217 locations, 6 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: 11.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 120 SDtfs, 463 SDslu, 120 SDs, 0 SdLazy, 650 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 490 GetRequests, 423 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=438occurred in iteration=7, InterpolantAutomatonStates: 54, 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, 0.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1498 NumberOfCodeBlocks, 1476 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1487 ConstructedInterpolants, 0 QuantifiedInterpolants, 2949 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1040 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 23/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:48:33,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5598cc-65f4-45d9-aa53-74beb467a5aa/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...