./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2014.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2014.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G --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 f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:07:32,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:07:32,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:07:32,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:07:32,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:07:32,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:07:32,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:07:32,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:07:32,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:07:32,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:07:32,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:07:32,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:07:32,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:07:32,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:07:32,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:07:32,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:07:32,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:07:32,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:07:32,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:07:32,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:07:32,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:07:32,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:07:32,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:07:32,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:07:32,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:07:32,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:07:32,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:07:32,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:07:32,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:07:32,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:07:32,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:07:32,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:07:32,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:07:32,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:07:32,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:07:32,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:07:32,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:07:32,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:07:32,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:07:32,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:07:32,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:07:32,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 14:07:32,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:07:32,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:07:32,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:07:32,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:07:32,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:07:32,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:07:32,490 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:07:32,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:07:32,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 14:07:32,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:07:32,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 14:07:32,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:07:32,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:07:32,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:07:32,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:07:32,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 14:07:32,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:07:32,493 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:07:32,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:07:32,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:07:32,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:07:32,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:07:32,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:07:32,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:07:32,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:07:32,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:07:32,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:07:32,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:07:32,496 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:07:32,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:07:32,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:07:32,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:07:32,497 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_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 [2021-11-23 14:07:32,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:07:32,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:07:32,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:07:32,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:07:32,864 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:07:32,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/pthread-lit/fkp2014.i [2021-11-23 14:07:32,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/data/6d59f2e8f/df8b0f0759c24ba5821a6b5cbb69888d/FLAGa7844a108 [2021-11-23 14:07:33,576 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:07:33,584 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/sv-benchmarks/c/pthread-lit/fkp2014.i [2021-11-23 14:07:33,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/data/6d59f2e8f/df8b0f0759c24ba5821a6b5cbb69888d/FLAGa7844a108 [2021-11-23 14:07:33,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/data/6d59f2e8f/df8b0f0759c24ba5821a6b5cbb69888d [2021-11-23 14:07:33,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:07:33,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:07:33,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:07:33,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:07:33,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:07:33,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:33" (1/1) ... [2021-11-23 14:07:33,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f714ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:33, skipping insertion in model container [2021-11-23 14:07:33,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:07:33" (1/1) ... [2021-11-23 14:07:33,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:07:33,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:07:34,397 WARN L230 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_821a0e36-bc60-4618-9f26-cefce083b640/sv-benchmarks/c/pthread-lit/fkp2014.i[30003,30016] [2021-11-23 14:07:34,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:07:34,435 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:07:34,490 WARN L230 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_821a0e36-bc60-4618-9f26-cefce083b640/sv-benchmarks/c/pthread-lit/fkp2014.i[30003,30016] [2021-11-23 14:07:34,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:07:34,537 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:07:34,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34 WrapperNode [2021-11-23 14:07:34,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:07:34,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:07:34,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:07:34,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:07:34,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,588 INFO L137 Inliner]: procedures = 173, calls = 19, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 64 [2021-11-23 14:07:34,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:07:34,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:07:34,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:07:34,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:07:34,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:07:34,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:07:34,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:07:34,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:07:34,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (1/1) ... [2021-11-23 14:07:34,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:07:34,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:07:34,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:07:34,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_821a0e36-bc60-4618-9f26-cefce083b640/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:07:34,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:07:34,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 14:07:34,712 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-11-23 14:07:34,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-11-23 14:07:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:07:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:07:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:07:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:07:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 14:07:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:07:34,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:07:34,716 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 14:07:34,826 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:07:34,828 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:07:34,996 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:07:35,039 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:07:35,053 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 14:07:35,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:35 BoogieIcfgContainer [2021-11-23 14:07:35,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:07:35,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:07:35,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:07:35,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:07:35,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:07:33" (1/3) ... [2021-11-23 14:07:35,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158818b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:35, skipping insertion in model container [2021-11-23 14:07:35,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:07:34" (2/3) ... [2021-11-23 14:07:35,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158818b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:07:35, skipping insertion in model container [2021-11-23 14:07:35,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:07:35" (3/3) ... [2021-11-23 14:07:35,067 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2021-11-23 14:07:35,074 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 14:07:35,090 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:07:35,090 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 14:07:35,090 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 14:07:35,147 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,147 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,147 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,148 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,148 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,148 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,149 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,149 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,149 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,150 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,150 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,150 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,151 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,151 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,151 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,152 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,152 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,152 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,153 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,153 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,158 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,159 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,159 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,159 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,160 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,182 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,182 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,183 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,185 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,185 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,185 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,188 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,192 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,194 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,195 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,195 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,195 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,196 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,196 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,197 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,198 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:07:35,259 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:07:35,267 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 [2021-11-23 14:07:35,267 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 14:07:35,282 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 70 transitions, 145 flow [2021-11-23 14:07:35,327 INFO L129 PetriNetUnfolder]: 4/82 cut-off events. [2021-11-23 14:07:35,328 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 14:07:35,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 4/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2021-11-23 14:07:35,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 70 transitions, 145 flow [2021-11-23 14:07:35,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 70 transitions, 145 flow [2021-11-23 14:07:35,360 INFO L129 PetriNetUnfolder]: 3/66 cut-off events. [2021-11-23 14:07:35,360 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-23 14:07:35,360 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:35,361 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:35,362 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:35,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1443592451, now seen corresponding path program 1 times [2021-11-23 14:07:35,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:35,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417806675] [2021-11-23 14:07:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:35,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:07:35,518 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:07:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:07:35,614 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:07:35,616 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 14:07:35,617 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 3 remaining) [2021-11-23 14:07:35,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-23 14:07:35,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-23 14:07:35,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:07:35,626 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-23 14:07:35,628 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-23 14:07:35,628 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-23 14:07:35,640 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,641 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,641 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,641 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,642 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,644 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,644 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,644 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,644 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,645 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,645 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,645 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,645 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,645 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,645 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,646 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,646 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,646 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,646 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,646 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,647 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,647 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,647 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,647 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,648 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,648 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,648 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,649 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,649 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,649 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,649 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,650 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,650 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,650 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,651 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,651 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,651 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,651 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,652 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,652 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,652 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,652 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,653 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,653 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,653 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,653 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,654 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,654 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,654 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,654 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,655 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,655 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,655 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,655 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,656 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,656 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,656 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,656 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,657 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,657 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,657 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,657 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,658 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,658 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,659 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,660 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,661 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,662 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,663 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:35,664 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:07:35,667 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:07:35,669 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 [2021-11-23 14:07:35,669 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 14:07:35,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 92 transitions, 196 flow [2021-11-23 14:07:35,709 INFO L129 PetriNetUnfolder]: 6/121 cut-off events. [2021-11-23 14:07:35,713 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-23 14:07:35,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 6/121 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 180 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2021-11-23 14:07:35,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 92 transitions, 196 flow [2021-11-23 14:07:35,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 92 transitions, 196 flow [2021-11-23 14:07:35,744 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2021-11-23 14:07:35,744 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 14:07:35,744 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:35,744 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] [2021-11-23 14:07:35,745 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:35,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1750266967, now seen corresponding path program 1 times [2021-11-23 14:07:35,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:35,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396589569] [2021-11-23 14:07:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:35,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:36,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:36,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396589569] [2021-11-23 14:07:36,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396589569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:36,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:36,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:07:36,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019662007] [2021-11-23 14:07:36,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:36,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:07:36,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:36,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:07:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:07:36,175 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 92 [2021-11-23 14:07:36,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 92 transitions, 196 flow. Second operand has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:36,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:36,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 92 [2021-11-23 14:07:36,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:07:36,435 INFO L129 PetriNetUnfolder]: 23/219 cut-off events. [2021-11-23 14:07:36,435 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-11-23 14:07:36,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 219 events. 23/219 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 797 event pairs, 0 based on Foata normal form. 50/259 useless extension candidates. Maximal degree in co-relation 190. Up to 14 conditions per place. [2021-11-23 14:07:36,440 INFO L132 encePairwiseOnDemand]: 78/92 looper letters, 28 selfloop transitions, 12 changer transitions 1/111 dead transitions. [2021-11-23 14:07:36,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 111 transitions, 334 flow [2021-11-23 14:07:36,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:07:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 14:07:36,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 766 transitions. [2021-11-23 14:07:36,463 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8326086956521739 [2021-11-23 14:07:36,464 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 766 transitions. [2021-11-23 14:07:36,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 766 transitions. [2021-11-23 14:07:36,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:07:36,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 766 transitions. [2021-11-23 14:07:36,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:36,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:36,498 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:36,500 INFO L186 Difference]: Start difference. First operand has 93 places, 92 transitions, 196 flow. Second operand 10 states and 766 transitions. [2021-11-23 14:07:36,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 111 transitions, 334 flow [2021-11-23 14:07:36,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 111 transitions, 332 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-11-23 14:07:36,517 INFO L242 Difference]: Finished difference. Result has 105 places, 95 transitions, 258 flow [2021-11-23 14:07:36,520 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=258, PETRI_PLACES=105, PETRI_TRANSITIONS=95} [2021-11-23 14:07:36,524 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 12 predicate places. [2021-11-23 14:07:36,524 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 95 transitions, 258 flow [2021-11-23 14:07:36,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.28571428571429) internal successors, (506), 7 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:36,525 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:36,525 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:36,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:07:36,528 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 14:07:36,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:36,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1293266799, now seen corresponding path program 1 times [2021-11-23 14:07:36,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:36,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195661954] [2021-11-23 14:07:36,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:36,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:07:36,589 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:07:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:07:36,649 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:07:36,650 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 14:07:36,653 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2021-11-23 14:07:36,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-23 14:07:36,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-23 14:07:36,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-23 14:07:36,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:07:36,663 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 14:07:36,664 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-23 14:07:36,665 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-23 14:07:36,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,696 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,697 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,697 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,699 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,699 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,700 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,700 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,701 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,702 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,705 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,706 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,706 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,706 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,706 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,706 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,707 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,707 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,707 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,707 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,708 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,708 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,708 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,708 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,708 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,709 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,709 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,709 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,710 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,710 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,710 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,710 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,710 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,710 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,711 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,711 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,711 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,711 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,711 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,712 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,712 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,712 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,712 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,712 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,713 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,713 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,713 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,713 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,713 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,714 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,714 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,714 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,714 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,715 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,716 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,717 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,721 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,722 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,722 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,722 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,722 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,723 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,723 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,723 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,723 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,723 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,723 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,723 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,724 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,725 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,726 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,726 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,726 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,727 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,727 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,727 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,727 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,728 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,728 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,728 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,728 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,729 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,730 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,730 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,731 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,731 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,732 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,733 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,736 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,738 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,738 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,738 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,739 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,739 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,740 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,740 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,740 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,744 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,745 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,745 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,745 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,745 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,746 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,746 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,746 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:36,748 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:07:36,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:07:36,763 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 [2021-11-23 14:07:36,764 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-23 14:07:36,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 114 transitions, 249 flow [2021-11-23 14:07:36,811 INFO L129 PetriNetUnfolder]: 8/160 cut-off events. [2021-11-23 14:07:36,812 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-11-23 14:07:36,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 160 events. 8/160 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 306 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2021-11-23 14:07:36,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 114 transitions, 249 flow [2021-11-23 14:07:36,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 114 transitions, 249 flow [2021-11-23 14:07:36,841 INFO L129 PetriNetUnfolder]: 3/72 cut-off events. [2021-11-23 14:07:36,841 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 14:07:36,841 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:36,841 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] [2021-11-23 14:07:36,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 14:07:36,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:36,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1279246079, now seen corresponding path program 1 times [2021-11-23 14:07:36,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:36,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061735992] [2021-11-23 14:07:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:36,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:37,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:37,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061735992] [2021-11-23 14:07:37,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061735992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:37,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:37,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:07:37,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799272357] [2021-11-23 14:07:37,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:37,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:07:37,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:37,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:07:37,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:07:37,096 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 114 [2021-11-23 14:07:37,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 114 transitions, 249 flow. Second operand has 7 states, 7 states have (on average 88.28571428571429) internal successors, (618), 7 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:37,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:37,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 114 [2021-11-23 14:07:37,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:07:37,680 INFO L129 PetriNetUnfolder]: 238/950 cut-off events. [2021-11-23 14:07:37,680 INFO L130 PetriNetUnfolder]: For 229/229 co-relation queries the response was YES. [2021-11-23 14:07:37,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 950 events. 238/950 cut-off events. For 229/229 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 6528 event pairs, 11 based on Foata normal form. 277/1187 useless extension candidates. Maximal degree in co-relation 1038. Up to 98 conditions per place. [2021-11-23 14:07:37,699 INFO L132 encePairwiseOnDemand]: 97/114 looper letters, 63 selfloop transitions, 16 changer transitions 1/166 dead transitions. [2021-11-23 14:07:37,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 166 transitions, 580 flow [2021-11-23 14:07:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:07:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 14:07:37,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 975 transitions. [2021-11-23 14:07:37,705 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8552631578947368 [2021-11-23 14:07:37,705 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 975 transitions. [2021-11-23 14:07:37,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 975 transitions. [2021-11-23 14:07:37,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:07:37,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 975 transitions. [2021-11-23 14:07:37,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 97.5) internal successors, (975), 10 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:37,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:37,718 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:37,718 INFO L186 Difference]: Start difference. First operand has 116 places, 114 transitions, 249 flow. Second operand 10 states and 975 transitions. [2021-11-23 14:07:37,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 166 transitions, 580 flow [2021-11-23 14:07:37,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 166 transitions, 560 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-11-23 14:07:37,727 INFO L242 Difference]: Finished difference. Result has 128 places, 119 transitions, 341 flow [2021-11-23 14:07:37,727 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=341, PETRI_PLACES=128, PETRI_TRANSITIONS=119} [2021-11-23 14:07:37,728 INFO L334 CegarLoopForPetriNet]: 116 programPoint places, 12 predicate places. [2021-11-23 14:07:37,729 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 119 transitions, 341 flow [2021-11-23 14:07:37,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.28571428571429) internal successors, (618), 7 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:37,730 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:37,730 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:37,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:07:37,731 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 14:07:37,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:37,732 INFO L85 PathProgramCache]: Analyzing trace with hash 406920230, now seen corresponding path program 1 times [2021-11-23 14:07:37,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:37,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233881050] [2021-11-23 14:07:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:37,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:07:37,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:37,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233881050] [2021-11-23 14:07:37,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233881050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:37,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:37,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:07:37,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178191189] [2021-11-23 14:07:37,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:37,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:07:37,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:37,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:07:37,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:07:37,948 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 114 [2021-11-23 14:07:37,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 119 transitions, 341 flow. Second operand has 7 states, 7 states have (on average 88.42857142857143) internal successors, (619), 7 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:37,950 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:37,950 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 114 [2021-11-23 14:07:37,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:07:38,467 INFO L129 PetriNetUnfolder]: 269/1370 cut-off events. [2021-11-23 14:07:38,467 INFO L130 PetriNetUnfolder]: For 746/785 co-relation queries the response was YES. [2021-11-23 14:07:38,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 1370 events. 269/1370 cut-off events. For 746/785 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 10823 event pairs, 40 based on Foata normal form. 21/1332 useless extension candidates. Maximal degree in co-relation 1988. Up to 131 conditions per place. [2021-11-23 14:07:38,495 INFO L132 encePairwiseOnDemand]: 102/114 looper letters, 61 selfloop transitions, 24 changer transitions 0/174 dead transitions. [2021-11-23 14:07:38,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 174 transitions, 766 flow [2021-11-23 14:07:38,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:07:38,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 14:07:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 949 transitions. [2021-11-23 14:07:38,500 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8324561403508772 [2021-11-23 14:07:38,500 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 949 transitions. [2021-11-23 14:07:38,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 949 transitions. [2021-11-23 14:07:38,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:07:38,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 949 transitions. [2021-11-23 14:07:38,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 94.9) internal successors, (949), 10 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:38,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:38,511 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:38,511 INFO L186 Difference]: Start difference. First operand has 128 places, 119 transitions, 341 flow. Second operand 10 states and 949 transitions. [2021-11-23 14:07:38,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 174 transitions, 766 flow [2021-11-23 14:07:38,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 174 transitions, 764 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-23 14:07:38,541 INFO L242 Difference]: Finished difference. Result has 139 places, 131 transitions, 481 flow [2021-11-23 14:07:38,541 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=481, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2021-11-23 14:07:38,544 INFO L334 CegarLoopForPetriNet]: 116 programPoint places, 23 predicate places. [2021-11-23 14:07:38,544 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 481 flow [2021-11-23 14:07:38,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 88.42857142857143) internal successors, (619), 7 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:38,545 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:38,545 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:38,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 14:07:38,545 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 14:07:38,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:38,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1816871974, now seen corresponding path program 1 times [2021-11-23 14:07:38,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:38,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003231974] [2021-11-23 14:07:38,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:38,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:07:38,591 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:07:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:07:38,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:07:38,649 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 14:07:38,649 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 5 remaining) [2021-11-23 14:07:38,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-23 14:07:38,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-23 14:07:38,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-23 14:07:38,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-23 14:07:38,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 14:07:38,651 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 14:07:38,651 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-23 14:07:38,651 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-23 14:07:38,669 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,669 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,670 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,671 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,676 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,677 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,678 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,679 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,680 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,681 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,682 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,683 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,684 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,685 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,686 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,687 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,688 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,689 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,690 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,691 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,692 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,693 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,694 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,695 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,695 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,695 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,695 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,695 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,696 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,698 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,699 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,699 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,699 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,700 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,700 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,700 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,700 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,701 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,701 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,701 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,701 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,702 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,702 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,702 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,702 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,703 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,703 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,703 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,703 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:07:38,704 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:07:38,707 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:07:38,714 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 [2021-11-23 14:07:38,714 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 14:07:38,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 136 transitions, 304 flow [2021-11-23 14:07:38,753 INFO L129 PetriNetUnfolder]: 10/199 cut-off events. [2021-11-23 14:07:38,753 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-11-23 14:07:38,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 199 events. 10/199 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 406 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 168. Up to 10 conditions per place. [2021-11-23 14:07:38,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 136 transitions, 304 flow [2021-11-23 14:07:38,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 136 transitions, 304 flow [2021-11-23 14:07:38,779 INFO L129 PetriNetUnfolder]: 4/76 cut-off events. [2021-11-23 14:07:38,779 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 14:07:38,779 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:38,780 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] [2021-11-23 14:07:38,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 14:07:38,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:38,781 INFO L85 PathProgramCache]: Analyzing trace with hash 2006582730, now seen corresponding path program 1 times [2021-11-23 14:07:38,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:38,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416298990] [2021-11-23 14:07:38,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:38,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:38,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:07:38,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:38,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416298990] [2021-11-23 14:07:38,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416298990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:38,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:38,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:07:38,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572466544] [2021-11-23 14:07:38,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:38,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:07:38,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:38,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:07:38,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:07:38,887 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 136 [2021-11-23 14:07:38,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 136 transitions, 304 flow. Second operand has 7 states, 7 states have (on average 104.28571428571429) internal successors, (730), 7 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:38,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:38,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 136 [2021-11-23 14:07:38,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:07:40,245 INFO L129 PetriNetUnfolder]: 1677/4738 cut-off events. [2021-11-23 14:07:40,245 INFO L130 PetriNetUnfolder]: For 1790/1790 co-relation queries the response was YES. [2021-11-23 14:07:40,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8234 conditions, 4738 events. 1677/4738 cut-off events. For 1790/1790 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 42500 event pairs, 135 based on Foata normal form. 1430/5996 useless extension candidates. Maximal degree in co-relation 4815. Up to 757 conditions per place. [2021-11-23 14:07:40,365 INFO L132 encePairwiseOnDemand]: 116/136 looper letters, 89 selfloop transitions, 20 changer transitions 1/212 dead transitions. [2021-11-23 14:07:40,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 212 transitions, 806 flow [2021-11-23 14:07:40,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:07:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 14:07:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1172 transitions. [2021-11-23 14:07:40,371 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.861764705882353 [2021-11-23 14:07:40,371 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1172 transitions. [2021-11-23 14:07:40,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1172 transitions. [2021-11-23 14:07:40,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:07:40,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1172 transitions. [2021-11-23 14:07:40,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 117.2) internal successors, (1172), 10 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:40,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:40,384 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:40,384 INFO L186 Difference]: Start difference. First operand has 139 places, 136 transitions, 304 flow. Second operand 10 states and 1172 transitions. [2021-11-23 14:07:40,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 212 transitions, 806 flow [2021-11-23 14:07:40,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 212 transitions, 752 flow, removed 27 selfloop flow, removed 0 redundant places. [2021-11-23 14:07:40,392 INFO L242 Difference]: Finished difference. Result has 150 places, 143 transitions, 417 flow [2021-11-23 14:07:40,393 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=417, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2021-11-23 14:07:40,394 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2021-11-23 14:07:40,394 INFO L470 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 417 flow [2021-11-23 14:07:40,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.28571428571429) internal successors, (730), 7 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:40,395 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:40,395 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:40,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 14:07:40,396 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 14:07:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:40,397 INFO L85 PathProgramCache]: Analyzing trace with hash -264445945, now seen corresponding path program 1 times [2021-11-23 14:07:40,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:40,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74562086] [2021-11-23 14:07:40,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:40,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:07:40,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:40,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74562086] [2021-11-23 14:07:40,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74562086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:40,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:40,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:07:40,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968335738] [2021-11-23 14:07:40,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:40,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:07:40,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:40,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:07:40,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:07:40,529 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 136 [2021-11-23 14:07:40,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 417 flow. Second operand has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:40,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:40,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 136 [2021-11-23 14:07:40,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:07:42,619 INFO L129 PetriNetUnfolder]: 2224/7252 cut-off events. [2021-11-23 14:07:42,619 INFO L130 PetriNetUnfolder]: For 4963/5150 co-relation queries the response was YES. [2021-11-23 14:07:42,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15296 conditions, 7252 events. 2224/7252 cut-off events. For 4963/5150 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 76535 event pairs, 341 based on Foata normal form. 136/7122 useless extension candidates. Maximal degree in co-relation 15173. Up to 1084 conditions per place. [2021-11-23 14:07:42,799 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 87 selfloop transitions, 34 changer transitions 0/226 dead transitions. [2021-11-23 14:07:42,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 226 transitions, 1057 flow [2021-11-23 14:07:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:07:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 14:07:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1139 transitions. [2021-11-23 14:07:42,805 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8375 [2021-11-23 14:07:42,805 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1139 transitions. [2021-11-23 14:07:42,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1139 transitions. [2021-11-23 14:07:42,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:07:42,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1139 transitions. [2021-11-23 14:07:42,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:42,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:42,817 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:42,817 INFO L186 Difference]: Start difference. First operand has 150 places, 143 transitions, 417 flow. Second operand 10 states and 1139 transitions. [2021-11-23 14:07:42,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 226 transitions, 1057 flow [2021-11-23 14:07:42,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 226 transitions, 1055 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-23 14:07:42,858 INFO L242 Difference]: Finished difference. Result has 161 places, 161 transitions, 624 flow [2021-11-23 14:07:42,859 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=624, PETRI_PLACES=161, PETRI_TRANSITIONS=161} [2021-11-23 14:07:42,859 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 22 predicate places. [2021-11-23 14:07:42,860 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 161 transitions, 624 flow [2021-11-23 14:07:42,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:42,860 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:42,861 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:42,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 14:07:42,861 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 14:07:42,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:42,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1096817245, now seen corresponding path program 1 times [2021-11-23 14:07:42,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:42,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313196325] [2021-11-23 14:07:42,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:42,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:42,964 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 14:07:42,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:42,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313196325] [2021-11-23 14:07:42,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313196325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:42,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:42,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:07:42,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746388742] [2021-11-23 14:07:42,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:42,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:07:42,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:42,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:07:42,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:07:42,968 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 136 [2021-11-23 14:07:42,970 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 161 transitions, 624 flow. Second operand has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:42,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:42,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 136 [2021-11-23 14:07:42,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:07:45,464 INFO L129 PetriNetUnfolder]: 2824/9311 cut-off events. [2021-11-23 14:07:45,464 INFO L130 PetriNetUnfolder]: For 9644/9811 co-relation queries the response was YES. [2021-11-23 14:07:45,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21367 conditions, 9311 events. 2824/9311 cut-off events. For 9644/9811 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 105567 event pairs, 503 based on Foata normal form. 112/9140 useless extension candidates. Maximal degree in co-relation 21235. Up to 1500 conditions per place. [2021-11-23 14:07:45,850 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 82 selfloop transitions, 64 changer transitions 0/254 dead transitions. [2021-11-23 14:07:45,850 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 254 transitions, 1485 flow [2021-11-23 14:07:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:07:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 14:07:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1134 transitions. [2021-11-23 14:07:45,857 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8338235294117647 [2021-11-23 14:07:45,857 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1134 transitions. [2021-11-23 14:07:45,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1134 transitions. [2021-11-23 14:07:45,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:07:45,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1134 transitions. [2021-11-23 14:07:45,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 113.4) internal successors, (1134), 10 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:45,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:45,869 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:45,870 INFO L186 Difference]: Start difference. First operand has 161 places, 161 transitions, 624 flow. Second operand 10 states and 1134 transitions. [2021-11-23 14:07:45,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 254 transitions, 1485 flow [2021-11-23 14:07:45,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 254 transitions, 1478 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-23 14:07:45,916 INFO L242 Difference]: Finished difference. Result has 172 places, 195 transitions, 1126 flow [2021-11-23 14:07:45,916 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1126, PETRI_PLACES=172, PETRI_TRANSITIONS=195} [2021-11-23 14:07:45,919 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 33 predicate places. [2021-11-23 14:07:45,919 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 195 transitions, 1126 flow [2021-11-23 14:07:45,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.57142857142857) internal successors, (732), 7 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:45,920 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:45,920 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:45,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 14:07:45,921 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 14:07:45,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:45,922 INFO L85 PathProgramCache]: Analyzing trace with hash -367514462, now seen corresponding path program 1 times [2021-11-23 14:07:45,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:45,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580344233] [2021-11-23 14:07:45,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:45,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:07:46,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:46,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580344233] [2021-11-23 14:07:46,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580344233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:46,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:46,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 14:07:46,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986997530] [2021-11-23 14:07:46,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:46,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 14:07:46,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:46,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 14:07:46,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 14:07:46,079 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 136 [2021-11-23 14:07:46,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 195 transitions, 1126 flow. Second operand has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:46,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:46,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 136 [2021-11-23 14:07:46,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:07:49,208 INFO L129 PetriNetUnfolder]: 3430/12390 cut-off events. [2021-11-23 14:07:49,208 INFO L130 PetriNetUnfolder]: For 15827/16396 co-relation queries the response was YES. [2021-11-23 14:07:49,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28941 conditions, 12390 events. 3430/12390 cut-off events. For 15827/16396 co-relation queries the response was YES. Maximal size of possible extension queue 622. Compared 151386 event pairs, 439 based on Foata normal form. 329/12435 useless extension candidates. Maximal degree in co-relation 28801. Up to 1792 conditions per place. [2021-11-23 14:07:49,511 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 126 selfloop transitions, 94 changer transitions 0/328 dead transitions. [2021-11-23 14:07:49,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 328 transitions, 2261 flow [2021-11-23 14:07:49,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:07:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-23 14:07:49,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1822 transitions. [2021-11-23 14:07:49,518 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8373161764705882 [2021-11-23 14:07:49,520 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1822 transitions. [2021-11-23 14:07:49,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1822 transitions. [2021-11-23 14:07:49,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:07:49,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1822 transitions. [2021-11-23 14:07:49,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 113.875) internal successors, (1822), 16 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:49,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:49,539 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:49,539 INFO L186 Difference]: Start difference. First operand has 172 places, 195 transitions, 1126 flow. Second operand 16 states and 1822 transitions. [2021-11-23 14:07:49,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 328 transitions, 2261 flow [2021-11-23 14:07:49,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 328 transitions, 2254 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-23 14:07:49,643 INFO L242 Difference]: Finished difference. Result has 193 places, 226 transitions, 1660 flow [2021-11-23 14:07:49,643 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1119, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1660, PETRI_PLACES=193, PETRI_TRANSITIONS=226} [2021-11-23 14:07:49,645 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 54 predicate places. [2021-11-23 14:07:49,645 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 226 transitions, 1660 flow [2021-11-23 14:07:49,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:49,646 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:49,646 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:49,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 14:07:49,647 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 14:07:49,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:49,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1067004850, now seen corresponding path program 2 times [2021-11-23 14:07:49,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:49,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205938272] [2021-11-23 14:07:49,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:49,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:49,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:07:49,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:49,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205938272] [2021-11-23 14:07:49,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205938272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:49,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:49,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 14:07:49,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846489447] [2021-11-23 14:07:49,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:49,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 14:07:49,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:49,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 14:07:49,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-23 14:07:49,792 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 136 [2021-11-23 14:07:49,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 226 transitions, 1660 flow. Second operand has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:49,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:49,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 136 [2021-11-23 14:07:49,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:07:56,264 INFO L129 PetriNetUnfolder]: 5984/25944 cut-off events. [2021-11-23 14:07:56,264 INFO L130 PetriNetUnfolder]: For 70748/71985 co-relation queries the response was YES. [2021-11-23 14:07:56,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71557 conditions, 25944 events. 5984/25944 cut-off events. For 70748/71985 co-relation queries the response was YES. Maximal size of possible extension queue 1477. Compared 379291 event pairs, 519 based on Foata normal form. 501/25729 useless extension candidates. Maximal degree in co-relation 71405. Up to 3854 conditions per place. [2021-11-23 14:07:56,873 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 170 selfloop transitions, 169 changer transitions 0/447 dead transitions. [2021-11-23 14:07:56,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 447 transitions, 4145 flow [2021-11-23 14:07:56,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:07:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-23 14:07:56,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2071 transitions. [2021-11-23 14:07:56,882 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8459967320261438 [2021-11-23 14:07:56,882 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2071 transitions. [2021-11-23 14:07:56,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2071 transitions. [2021-11-23 14:07:56,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:07:56,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2071 transitions. [2021-11-23 14:07:56,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 115.05555555555556) internal successors, (2071), 18 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:56,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 136.0) internal successors, (2584), 19 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:56,903 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 136.0) internal successors, (2584), 19 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:56,903 INFO L186 Difference]: Start difference. First operand has 193 places, 226 transitions, 1660 flow. Second operand 18 states and 2071 transitions. [2021-11-23 14:07:56,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 447 transitions, 4145 flow [2021-11-23 14:07:57,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 447 transitions, 3976 flow, removed 46 selfloop flow, removed 5 redundant places. [2021-11-23 14:07:57,504 INFO L242 Difference]: Finished difference. Result has 215 places, 325 transitions, 3201 flow [2021-11-23 14:07:57,505 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1545, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3201, PETRI_PLACES=215, PETRI_TRANSITIONS=325} [2021-11-23 14:07:57,506 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 76 predicate places. [2021-11-23 14:07:57,506 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 325 transitions, 3201 flow [2021-11-23 14:07:57,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:57,507 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:07:57,507 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:07:57,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 14:07:57,507 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 14:07:57,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:07:57,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1192967673, now seen corresponding path program 1 times [2021-11-23 14:07:57,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:07:57,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403734069] [2021-11-23 14:07:57,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:07:57,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:07:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:07:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:07:57,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:07:57,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403734069] [2021-11-23 14:07:57,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403734069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:07:57,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:07:57,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 14:07:57,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31771449] [2021-11-23 14:07:57,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:07:57,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 14:07:57,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:07:57,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 14:07:57,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 14:07:57,616 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 136 [2021-11-23 14:07:57,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 325 transitions, 3201 flow. Second operand has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:07:57,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:07:57,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 136 [2021-11-23 14:07:57,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:08:05,759 INFO L129 PetriNetUnfolder]: 6964/29881 cut-off events. [2021-11-23 14:08:05,759 INFO L130 PetriNetUnfolder]: For 146069/149993 co-relation queries the response was YES. [2021-11-23 14:08:06,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97401 conditions, 29881 events. 6964/29881 cut-off events. For 146069/149993 co-relation queries the response was YES. Maximal size of possible extension queue 1554. Compared 443176 event pairs, 802 based on Foata normal form. 1172/30495 useless extension candidates. Maximal degree in co-relation 89610. Up to 4333 conditions per place. [2021-11-23 14:08:06,631 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 305 selfloop transitions, 186 changer transitions 0/620 dead transitions. [2021-11-23 14:08:06,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 620 transitions, 7724 flow [2021-11-23 14:08:06,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 14:08:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-23 14:08:06,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1824 transitions. [2021-11-23 14:08:06,640 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2021-11-23 14:08:06,641 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1824 transitions. [2021-11-23 14:08:06,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1824 transitions. [2021-11-23 14:08:06,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:08:06,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1824 transitions. [2021-11-23 14:08:06,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 114.0) internal successors, (1824), 16 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:06,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:06,659 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:06,660 INFO L186 Difference]: Start difference. First operand has 215 places, 325 transitions, 3201 flow. Second operand 16 states and 1824 transitions. [2021-11-23 14:08:06,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 620 transitions, 7724 flow [2021-11-23 14:08:09,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 620 transitions, 6358 flow, removed 633 selfloop flow, removed 6 redundant places. [2021-11-23 14:08:09,312 INFO L242 Difference]: Finished difference. Result has 228 places, 394 transitions, 4003 flow [2021-11-23 14:08:09,313 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=2729, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4003, PETRI_PLACES=228, PETRI_TRANSITIONS=394} [2021-11-23 14:08:09,314 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 89 predicate places. [2021-11-23 14:08:09,314 INFO L470 AbstractCegarLoop]: Abstraction has has 228 places, 394 transitions, 4003 flow [2021-11-23 14:08:09,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:09,315 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:08:09,316 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:09,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 14:08:09,316 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 14:08:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash -74641143, now seen corresponding path program 2 times [2021-11-23 14:08:09,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:09,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749738330] [2021-11-23 14:08:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:09,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:08:09,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:09,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749738330] [2021-11-23 14:08:09,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749738330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:09,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:09,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 14:08:09,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781315594] [2021-11-23 14:08:09,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:09,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 14:08:09,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:09,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 14:08:09,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-23 14:08:09,432 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 136 [2021-11-23 14:08:09,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 394 transitions, 4003 flow. Second operand has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:09,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:08:09,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 136 [2021-11-23 14:08:09,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:08:18,780 INFO L129 PetriNetUnfolder]: 7747/35020 cut-off events. [2021-11-23 14:08:18,780 INFO L130 PetriNetUnfolder]: For 149696/152419 co-relation queries the response was YES. [2021-11-23 14:08:19,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107628 conditions, 35020 events. 7747/35020 cut-off events. For 149696/152419 co-relation queries the response was YES. Maximal size of possible extension queue 1849. Compared 541981 event pairs, 694 based on Foata normal form. 951/35176 useless extension candidates. Maximal degree in co-relation 107440. Up to 4122 conditions per place. [2021-11-23 14:08:19,608 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 213 selfloop transitions, 408 changer transitions 0/750 dead transitions. [2021-11-23 14:08:19,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 750 transitions, 8905 flow [2021-11-23 14:08:19,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 14:08:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-23 14:08:19,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2073 transitions. [2021-11-23 14:08:19,616 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8468137254901961 [2021-11-23 14:08:19,616 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2073 transitions. [2021-11-23 14:08:19,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2073 transitions. [2021-11-23 14:08:19,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:08:19,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2073 transitions. [2021-11-23 14:08:19,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 115.16666666666667) internal successors, (2073), 18 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:19,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 136.0) internal successors, (2584), 19 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:19,629 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 136.0) internal successors, (2584), 19 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:19,629 INFO L186 Difference]: Start difference. First operand has 228 places, 394 transitions, 4003 flow. Second operand 18 states and 2073 transitions. [2021-11-23 14:08:19,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 750 transitions, 8905 flow [2021-11-23 14:08:22,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 750 transitions, 8476 flow, removed 176 selfloop flow, removed 5 redundant places. [2021-11-23 14:08:22,183 INFO L242 Difference]: Finished difference. Result has 249 places, 595 transitions, 7425 flow [2021-11-23 14:08:22,184 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3754, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7425, PETRI_PLACES=249, PETRI_TRANSITIONS=595} [2021-11-23 14:08:22,185 INFO L334 CegarLoopForPetriNet]: 139 programPoint places, 110 predicate places. [2021-11-23 14:08:22,185 INFO L470 AbstractCegarLoop]: Abstraction has has 249 places, 595 transitions, 7425 flow [2021-11-23 14:08:22,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.44444444444444) internal successors, (940), 9 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:22,186 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:08:22,186 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:22,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 14:08:22,187 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 14:08:22,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:22,188 INFO L85 PathProgramCache]: Analyzing trace with hash -887361412, now seen corresponding path program 1 times [2021-11-23 14:08:22,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:22,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415572019] [2021-11-23 14:08:22,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:22,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:08:22,206 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:08:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:08:22,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:08:22,232 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 14:08:22,232 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 6 remaining) [2021-11-23 14:08:22,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-23 14:08:22,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2021-11-23 14:08:22,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2021-11-23 14:08:22,233 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2021-11-23 14:08:22,234 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-23 14:08:22,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 14:08:22,234 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2021-11-23 14:08:22,235 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-23 14:08:22,235 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-23 14:08:22,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,256 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,257 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,258 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,259 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,260 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,261 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,262 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,263 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,264 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,264 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,264 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,264 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,264 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,265 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,265 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,265 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,265 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,265 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,266 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,266 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,266 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,266 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,266 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,266 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,267 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,267 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,267 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,267 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,268 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,269 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,270 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,271 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,272 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,273 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,274 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,275 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,276 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,277 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,278 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,278 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,278 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,278 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,278 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,278 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,279 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,280 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,281 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,281 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,281 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,281 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,281 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,282 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,283 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,284 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,285 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,286 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,286 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,286 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,286 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,286 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,287 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,287 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,287 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,287 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,287 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,288 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,288 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,288 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,288 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,288 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,289 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,289 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,289 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,290 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,290 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,290 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,290 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,291 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,291 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,291 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,291 WARN L322 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,292 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,292 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,293 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,293 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,293 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,293 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,293 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,294 WARN L322 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,294 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,295 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,295 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,295 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,295 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,295 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,296 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,296 WARN L322 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,297 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,298 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,298 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,298 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,298 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,299 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,299 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,299 WARN L322 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,301 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,301 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,301 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,301 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,302 WARN L322 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 14:08:22,303 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-23 14:08:22,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:08:22,306 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 [2021-11-23 14:08:22,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-23 14:08:22,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 158 transitions, 361 flow [2021-11-23 14:08:22,347 INFO L129 PetriNetUnfolder]: 12/238 cut-off events. [2021-11-23 14:08:22,347 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-11-23 14:08:22,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 238 events. 12/238 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 534 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 212. Up to 12 conditions per place. [2021-11-23 14:08:22,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 158 transitions, 361 flow [2021-11-23 14:08:22,354 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 158 transitions, 361 flow [2021-11-23 14:08:22,361 INFO L129 PetriNetUnfolder]: 3/70 cut-off events. [2021-11-23 14:08:22,361 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-23 14:08:22,362 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:08:22,362 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] [2021-11-23 14:08:22,362 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 14:08:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:22,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2054879489, now seen corresponding path program 1 times [2021-11-23 14:08:22,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:22,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872960528] [2021-11-23 14:08:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:22,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:08:22,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:22,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872960528] [2021-11-23 14:08:22,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872960528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:22,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:22,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:08:22,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102616424] [2021-11-23 14:08:22,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:22,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:08:22,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:22,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:08:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:08:22,445 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 158 [2021-11-23 14:08:22,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 158 transitions, 361 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:22,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:08:22,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 158 [2021-11-23 14:08:22,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:08:26,253 INFO L129 PetriNetUnfolder]: 9956/22593 cut-off events. [2021-11-23 14:08:26,253 INFO L130 PetriNetUnfolder]: For 11866/11866 co-relation queries the response was YES. [2021-11-23 14:08:26,532 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41240 conditions, 22593 events. 9956/22593 cut-off events. For 11866/11866 co-relation queries the response was YES. Maximal size of possible extension queue 952. Compared 232440 event pairs, 909 based on Foata normal form. 7110/29116 useless extension candidates. Maximal degree in co-relation 24585. Up to 4734 conditions per place. [2021-11-23 14:08:26,710 INFO L132 encePairwiseOnDemand]: 135/158 looper letters, 115 selfloop transitions, 24 changer transitions 1/258 dead transitions. [2021-11-23 14:08:26,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 258 transitions, 1048 flow [2021-11-23 14:08:26,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:08:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 14:08:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1369 transitions. [2021-11-23 14:08:26,713 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8664556962025316 [2021-11-23 14:08:26,714 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1369 transitions. [2021-11-23 14:08:26,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1369 transitions. [2021-11-23 14:08:26,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:08:26,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1369 transitions. [2021-11-23 14:08:26,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.9) internal successors, (1369), 10 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:26,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 158.0) internal successors, (1738), 11 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:26,723 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 158.0) internal successors, (1738), 11 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:26,723 INFO L186 Difference]: Start difference. First operand has 162 places, 158 transitions, 361 flow. Second operand 10 states and 1369 transitions. [2021-11-23 14:08:26,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 258 transitions, 1048 flow [2021-11-23 14:08:26,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 258 transitions, 944 flow, removed 52 selfloop flow, removed 0 redundant places. [2021-11-23 14:08:26,735 INFO L242 Difference]: Finished difference. Result has 172 places, 167 transitions, 493 flow [2021-11-23 14:08:26,735 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=493, PETRI_PLACES=172, PETRI_TRANSITIONS=167} [2021-11-23 14:08:26,736 INFO L334 CegarLoopForPetriNet]: 162 programPoint places, 10 predicate places. [2021-11-23 14:08:26,736 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 167 transitions, 493 flow [2021-11-23 14:08:26,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:26,738 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:08:26,738 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:26,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 14:08:26,739 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 14:08:26,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash 989074183, now seen corresponding path program 1 times [2021-11-23 14:08:26,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:26,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640721118] [2021-11-23 14:08:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:26,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:26,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 14:08:26,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:26,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640721118] [2021-11-23 14:08:26,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640721118] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:26,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:26,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:08:26,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911283310] [2021-11-23 14:08:26,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:26,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:08:26,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:26,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:08:26,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:08:26,825 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 158 [2021-11-23 14:08:26,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 167 transitions, 493 flow. Second operand has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:26,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:08:26,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 158 [2021-11-23 14:08:26,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 14:08:33,707 INFO L129 PetriNetUnfolder]: 14628/36981 cut-off events. [2021-11-23 14:08:33,707 INFO L130 PetriNetUnfolder]: For 28090/28704 co-relation queries the response was YES. [2021-11-23 14:08:34,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84532 conditions, 36981 events. 14628/36981 cut-off events. For 28090/28704 co-relation queries the response was YES. Maximal size of possible extension queue 1654. Compared 445706 event pairs, 1987 based on Foata normal form. 416/36603 useless extension candidates. Maximal degree in co-relation 71592. Up to 7343 conditions per place. [2021-11-23 14:08:34,464 INFO L132 encePairwiseOnDemand]: 142/158 looper letters, 113 selfloop transitions, 44 changer transitions 0/278 dead transitions. [2021-11-23 14:08:34,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 278 transitions, 1348 flow [2021-11-23 14:08:34,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 14:08:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-23 14:08:34,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1329 transitions. [2021-11-23 14:08:34,467 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8411392405063292 [2021-11-23 14:08:34,467 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1329 transitions. [2021-11-23 14:08:34,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1329 transitions. [2021-11-23 14:08:34,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:08:34,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1329 transitions. [2021-11-23 14:08:34,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.9) internal successors, (1329), 10 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:34,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 158.0) internal successors, (1738), 11 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:34,475 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 158.0) internal successors, (1738), 11 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:34,475 INFO L186 Difference]: Start difference. First operand has 172 places, 167 transitions, 493 flow. Second operand 10 states and 1329 transitions. [2021-11-23 14:08:34,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 278 transitions, 1348 flow [2021-11-23 14:08:34,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 278 transitions, 1346 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-23 14:08:34,987 INFO L242 Difference]: Finished difference. Result has 183 places, 191 transitions, 767 flow [2021-11-23 14:08:34,988 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=767, PETRI_PLACES=183, PETRI_TRANSITIONS=191} [2021-11-23 14:08:34,988 INFO L334 CegarLoopForPetriNet]: 162 programPoint places, 21 predicate places. [2021-11-23 14:08:34,988 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 191 transitions, 767 flow [2021-11-23 14:08:34,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:34,989 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 14:08:34,989 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:08:34,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 14:08:34,989 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 14:08:34,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:08:34,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1900820306, now seen corresponding path program 1 times [2021-11-23 14:08:34,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:08:34,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778857608] [2021-11-23 14:08:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:08:34,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:08:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:08:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 14:08:35,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:08:35,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778857608] [2021-11-23 14:08:35,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778857608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:08:35,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:08:35,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 14:08:35,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466177514] [2021-11-23 14:08:35,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:08:35,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 14:08:35,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:08:35,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 14:08:35,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 14:08:35,066 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 158 [2021-11-23 14:08:35,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 191 transitions, 767 flow. Second operand has 7 states, 7 states have (on average 120.57142857142857) internal successors, (844), 7 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:08:35,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 14:08:35,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 158 [2021-11-23 14:08:35,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand