./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c --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_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/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_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/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_90d0a7a0-4807-4fad-b3bd-d02009a1f906/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 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:52:40,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:52:40,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:52:40,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:52:40,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:52:40,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:52:40,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:52:40,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:52:40,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:52:40,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:52:40,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:52:40,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:52:40,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:52:40,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:52:40,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:52:40,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:52:40,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:52:40,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:52:40,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:52:40,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:52:40,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:52:40,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:52:40,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:52:40,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:52:40,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:52:40,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:52:40,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:52:40,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:52:40,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:52:40,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:52:40,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:52:40,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:52:40,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:52:40,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:52:40,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:52:40,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:52:40,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:52:40,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:52:40,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:52:40,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:52:40,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:52:40,679 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 12:52:40,711 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:52:40,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:52:40,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:52:40,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:52:40,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:52:40,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:52:40,715 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:52:40,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:52:40,715 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:52:40,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:52:40,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:52:40,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:52:40,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:52:40,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:52:40,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:52:40,717 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:52:40,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:52:40,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:52:40,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:52:40,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:52:40,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:52:40,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:52:40,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:52:40,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:52:40,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:52:40,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:52:40,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:52:40,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:52:40,722 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:52:40,722 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:52:40,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:52:40,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:52:40,723 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_90d0a7a0-4807-4fad-b3bd-d02009a1f906/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 [2021-11-23 12:52:41,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:52:41,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:52:41,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:52:41,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:52:41,087 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:52:41,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2021-11-23 12:52:41,186 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/data/dc53565e0/e6f9ba529a8643b2b5ef8846d1c7047d/FLAG74bd03cd5 [2021-11-23 12:52:41,789 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:52:41,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2021-11-23 12:52:41,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/data/dc53565e0/e6f9ba529a8643b2b5ef8846d1c7047d/FLAG74bd03cd5 [2021-11-23 12:52:42,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/data/dc53565e0/e6f9ba529a8643b2b5ef8846d1c7047d [2021-11-23 12:52:42,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:52:42,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:52:42,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:52:42,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:52:42,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:52:42,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea561db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42, skipping insertion in model container [2021-11-23 12:52:42,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:52:42,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:52:42,417 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_90d0a7a0-4807-4fad-b3bd-d02009a1f906/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2021-11-23 12:52:42,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:52:42,439 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:52:42,475 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_90d0a7a0-4807-4fad-b3bd-d02009a1f906/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c[3642,3655] [2021-11-23 12:52:42,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:52:42,498 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:52:42,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42 WrapperNode [2021-11-23 12:52:42,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:52:42,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:52:42,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:52:42,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:52:42,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,570 INFO L137 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 297 [2021-11-23 12:52:42,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:52:42,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:52:42,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:52:42,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:52:42,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:52:42,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:52:42,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:52:42,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:52:42,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (1/1) ... [2021-11-23 12:52:42,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:52:42,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:52:42,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:52:42,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:52:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:52:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:52:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:52:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:52:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 12:52:42,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 12:52:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 12:52:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 12:52:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 12:52:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 12:52:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-23 12:52:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-23 12:52:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:52:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 12:52:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 12:52:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 12:52:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:52:42,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:52:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:52:42,752 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 12:52:42,897 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:52:42,914 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:52:43,565 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:52:43,833 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:52:43,833 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 12:52:43,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:52:43 BoogieIcfgContainer [2021-11-23 12:52:43,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:52:43,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:52:43,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:52:43,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:52:43,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:52:42" (1/3) ... [2021-11-23 12:52:43,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c3116e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:52:43, skipping insertion in model container [2021-11-23 12:52:43,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:42" (2/3) ... [2021-11-23 12:52:43,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c3116e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:52:43, skipping insertion in model container [2021-11-23 12:52:43,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:52:43" (3/3) ... [2021-11-23 12:52:43,855 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2021-11-23 12:52:43,862 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-23 12:52:43,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:52:43,869 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 12:52:43,869 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-23 12:52:43,920 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,920 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,921 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,921 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,921 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,921 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,922 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,922 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,922 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,923 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,923 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,923 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,923 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,924 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,924 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,924 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,924 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,925 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,926 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,926 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,927 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,927 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,927 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,927 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,927 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,928 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,928 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,928 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,929 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,930 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,933 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,934 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,934 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,934 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,934 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,935 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,935 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,935 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,935 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,936 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,937 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,938 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,939 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,940 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,940 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,942 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,942 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,942 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,944 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,945 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,946 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,946 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,946 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,946 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,947 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,947 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,947 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,947 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,948 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,948 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,948 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,949 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,949 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,949 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,949 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,949 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,950 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,951 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,951 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,951 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,951 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,952 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,952 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,952 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,953 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,953 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,953 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,953 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,954 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,954 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,954 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,954 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,955 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,958 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,958 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,958 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,958 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,959 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,959 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,959 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,960 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,960 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,960 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,960 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,961 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,961 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,961 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,961 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,962 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,962 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,962 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,962 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,962 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,967 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,968 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,968 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,968 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,968 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,969 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,970 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,971 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,972 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,972 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,973 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,973 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,973 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,974 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,974 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,974 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,974 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,975 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,975 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,975 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,976 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,976 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,977 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,978 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,982 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,984 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,984 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,984 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,985 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,985 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,985 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,985 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,986 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,986 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,987 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-23 12:52:43,991 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-23 12:52:44,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:52:44,090 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 12:52:44,090 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-23 12:52:44,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 206 transitions, 444 flow [2021-11-23 12:52:44,293 INFO L129 PetriNetUnfolder]: 15/202 cut-off events. [2021-11-23 12:52:44,294 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-23 12:52:44,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 202 events. 15/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 117 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2021-11-23 12:52:44,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 206 transitions, 444 flow [2021-11-23 12:52:44,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 187 places, 189 transitions, 402 flow [2021-11-23 12:52:44,384 INFO L129 PetriNetUnfolder]: 15/188 cut-off events. [2021-11-23 12:52:44,385 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-23 12:52:44,386 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:52:44,386 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:44,387 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:52:44,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:44,394 INFO L85 PathProgramCache]: Analyzing trace with hash -912322767, now seen corresponding path program 1 times [2021-11-23 12:52:44,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:44,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784678176] [2021-11-23 12:52:44,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:44,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:44,802 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 12:52:44,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:44,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784678176] [2021-11-23 12:52:44,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784678176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:52:44,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:52:44,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:52:44,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751137102] [2021-11-23 12:52:44,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:52:44,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:52:44,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:52:44,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:52:44,868 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 206 [2021-11-23 12:52:44,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 189 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 185.0) internal successors, (370), 2 states have internal predecessors, (370), 0 states have call successors, (0), 0 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 12:52:44,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:52:44,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 206 [2021-11-23 12:52:44,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:52:45,035 INFO L129 PetriNetUnfolder]: 118/325 cut-off events. [2021-11-23 12:52:45,036 INFO L130 PetriNetUnfolder]: For 61/62 co-relation queries the response was YES. [2021-11-23 12:52:45,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 325 events. 118/325 cut-off events. For 61/62 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 583 event pairs, 51 based on Foata normal form. 72/378 useless extension candidates. Maximal degree in co-relation 351. Up to 163 conditions per place. [2021-11-23 12:52:45,042 INFO L132 encePairwiseOnDemand]: 196/206 looper letters, 16 selfloop transitions, 0 changer transitions 5/179 dead transitions. [2021-11-23 12:52:45,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 179 transitions, 414 flow [2021-11-23 12:52:45,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:52:45,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-23 12:52:45,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 384 transitions. [2021-11-23 12:52:45,071 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9320388349514563 [2021-11-23 12:52:45,072 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 384 transitions. [2021-11-23 12:52:45,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 384 transitions. [2021-11-23 12:52:45,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:52:45,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 384 transitions. [2021-11-23 12:52:45,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 192.0) internal successors, (384), 2 states have internal predecessors, (384), 0 states have call successors, (0), 0 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 12:52:45,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 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 12:52:45,103 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 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 12:52:45,105 INFO L186 Difference]: Start difference. First operand has 187 places, 189 transitions, 402 flow. Second operand 2 states and 384 transitions. [2021-11-23 12:52:45,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 179 transitions, 414 flow [2021-11-23 12:52:45,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 179 transitions, 398 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-11-23 12:52:45,122 INFO L242 Difference]: Finished difference. Result has 180 places, 174 transitions, 356 flow [2021-11-23 12:52:45,125 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=356, PETRI_PLACES=180, PETRI_TRANSITIONS=174} [2021-11-23 12:52:45,131 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, -7 predicate places. [2021-11-23 12:52:45,131 INFO L470 AbstractCegarLoop]: Abstraction has has 180 places, 174 transitions, 356 flow [2021-11-23 12:52:45,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 185.0) internal successors, (370), 2 states have internal predecessors, (370), 0 states have call successors, (0), 0 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 12:52:45,132 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:52:45,133 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:45,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:52:45,134 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:52:45,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:45,135 INFO L85 PathProgramCache]: Analyzing trace with hash -701672161, now seen corresponding path program 1 times [2021-11-23 12:52:45,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:45,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919176060] [2021-11-23 12:52:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:45,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:45,784 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 12:52:45,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:45,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919176060] [2021-11-23 12:52:45,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919176060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:52:45,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:52:45,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 12:52:45,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015776544] [2021-11-23 12:52:45,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:52:45,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 12:52:45,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:45,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 12:52:45,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 12:52:45,799 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 206 [2021-11-23 12:52:45,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 174 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 151.14285714285714) internal successors, (1058), 7 states have internal predecessors, (1058), 0 states have call successors, (0), 0 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 12:52:45,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:52:45,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 206 [2021-11-23 12:52:45,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:52:46,217 INFO L129 PetriNetUnfolder]: 133/378 cut-off events. [2021-11-23 12:52:46,217 INFO L130 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2021-11-23 12:52:46,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 378 events. 133/378 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 810 event pairs, 8 based on Foata normal form. 1/362 useless extension candidates. Maximal degree in co-relation 612. Up to 202 conditions per place. [2021-11-23 12:52:46,228 INFO L132 encePairwiseOnDemand]: 196/206 looper letters, 47 selfloop transitions, 7 changer transitions 4/188 dead transitions. [2021-11-23 12:52:46,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 188 transitions, 507 flow [2021-11-23 12:52:46,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 12:52:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-23 12:52:46,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1081 transitions. [2021-11-23 12:52:46,234 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7496532593619972 [2021-11-23 12:52:46,234 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1081 transitions. [2021-11-23 12:52:46,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1081 transitions. [2021-11-23 12:52:46,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:52:46,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1081 transitions. [2021-11-23 12:52:46,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 154.42857142857142) internal successors, (1081), 7 states have internal predecessors, (1081), 0 states have call successors, (0), 0 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 12:52:46,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 0 states have call successors, (0), 0 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 12:52:46,250 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 206.0) internal successors, (1648), 8 states have internal predecessors, (1648), 0 states have call successors, (0), 0 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 12:52:46,250 INFO L186 Difference]: Start difference. First operand has 180 places, 174 transitions, 356 flow. Second operand 7 states and 1081 transitions. [2021-11-23 12:52:46,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 188 transitions, 507 flow [2021-11-23 12:52:46,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 188 transitions, 507 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-23 12:52:46,263 INFO L242 Difference]: Finished difference. Result has 184 places, 178 transitions, 397 flow [2021-11-23 12:52:46,264 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=397, PETRI_PLACES=184, PETRI_TRANSITIONS=178} [2021-11-23 12:52:46,265 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, -3 predicate places. [2021-11-23 12:52:46,266 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 178 transitions, 397 flow [2021-11-23 12:52:46,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 151.14285714285714) internal successors, (1058), 7 states have internal predecessors, (1058), 0 states have call successors, (0), 0 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 12:52:46,267 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:52:46,268 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:46,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:52:46,268 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:52:46,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:46,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1547900015, now seen corresponding path program 1 times [2021-11-23 12:52:46,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:46,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779372624] [2021-11-23 12:52:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:46,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:46,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:52:46,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:46,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779372624] [2021-11-23 12:52:46,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779372624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:52:46,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:52:46,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-23 12:52:46,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406211062] [2021-11-23 12:52:46,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:52:46,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 12:52:46,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:46,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 12:52:46,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-23 12:52:46,740 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 206 [2021-11-23 12:52:46,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 178 transitions, 397 flow. Second operand has 12 states, 12 states have (on average 137.83333333333334) internal successors, (1654), 12 states have internal predecessors, (1654), 0 states have call successors, (0), 0 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 12:52:46,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:52:46,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 206 [2021-11-23 12:52:46,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:52:47,468 INFO L129 PetriNetUnfolder]: 165/534 cut-off events. [2021-11-23 12:52:47,468 INFO L130 PetriNetUnfolder]: For 99/100 co-relation queries the response was YES. [2021-11-23 12:52:47,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 998 conditions, 534 events. 165/534 cut-off events. For 99/100 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1671 event pairs, 44 based on Foata normal form. 25/525 useless extension candidates. Maximal degree in co-relation 991. Up to 209 conditions per place. [2021-11-23 12:52:47,476 INFO L132 encePairwiseOnDemand]: 193/206 looper letters, 60 selfloop transitions, 4 changer transitions 22/204 dead transitions. [2021-11-23 12:52:47,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 204 transitions, 650 flow [2021-11-23 12:52:47,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 12:52:47,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-23 12:52:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1557 transitions. [2021-11-23 12:52:47,488 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6871138570167696 [2021-11-23 12:52:47,488 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1557 transitions. [2021-11-23 12:52:47,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1557 transitions. [2021-11-23 12:52:47,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:52:47,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1557 transitions. [2021-11-23 12:52:47,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 141.54545454545453) internal successors, (1557), 11 states have internal predecessors, (1557), 0 states have call successors, (0), 0 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 12:52:47,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 206.0) internal successors, (2472), 12 states have internal predecessors, (2472), 0 states have call successors, (0), 0 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 12:52:47,508 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 206.0) internal successors, (2472), 12 states have internal predecessors, (2472), 0 states have call successors, (0), 0 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 12:52:47,508 INFO L186 Difference]: Start difference. First operand has 184 places, 178 transitions, 397 flow. Second operand 11 states and 1557 transitions. [2021-11-23 12:52:47,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 204 transitions, 650 flow [2021-11-23 12:52:47,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 204 transitions, 628 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-11-23 12:52:47,523 INFO L242 Difference]: Finished difference. Result has 194 places, 179 transitions, 420 flow [2021-11-23 12:52:47,524 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=420, PETRI_PLACES=194, PETRI_TRANSITIONS=179} [2021-11-23 12:52:47,527 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 7 predicate places. [2021-11-23 12:52:47,528 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 179 transitions, 420 flow [2021-11-23 12:52:47,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 137.83333333333334) internal successors, (1654), 12 states have internal predecessors, (1654), 0 states have call successors, (0), 0 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 12:52:47,531 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:52:47,532 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:47,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:52:47,532 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:52:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash 255322100, now seen corresponding path program 1 times [2021-11-23 12:52:47,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:47,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754257478] [2021-11-23 12:52:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:47,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:47,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:52:47,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:47,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754257478] [2021-11-23 12:52:47,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754257478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:52:47,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:52:47,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 12:52:47,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031543706] [2021-11-23 12:52:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:52:47,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 12:52:47,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:47,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 12:52:47,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-23 12:52:47,883 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 206 [2021-11-23 12:52:47,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 179 transitions, 420 flow. Second operand has 8 states, 8 states have (on average 154.25) internal successors, (1234), 8 states have internal predecessors, (1234), 0 states have call successors, (0), 0 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 12:52:47,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:52:47,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 206 [2021-11-23 12:52:47,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:52:48,353 INFO L129 PetriNetUnfolder]: 346/988 cut-off events. [2021-11-23 12:52:48,353 INFO L130 PetriNetUnfolder]: For 351/353 co-relation queries the response was YES. [2021-11-23 12:52:48,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 988 events. 346/988 cut-off events. For 351/353 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4648 event pairs, 44 based on Foata normal form. 2/921 useless extension candidates. Maximal degree in co-relation 1851. Up to 208 conditions per place. [2021-11-23 12:52:48,371 INFO L132 encePairwiseOnDemand]: 196/206 looper letters, 59 selfloop transitions, 16 changer transitions 4/214 dead transitions. [2021-11-23 12:52:48,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 214 transitions, 698 flow [2021-11-23 12:52:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 12:52:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-11-23 12:52:48,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1276 transitions. [2021-11-23 12:52:48,378 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7742718446601942 [2021-11-23 12:52:48,378 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1276 transitions. [2021-11-23 12:52:48,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1276 transitions. [2021-11-23 12:52:48,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:52:48,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1276 transitions. [2021-11-23 12:52:48,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 159.5) internal successors, (1276), 8 states have internal predecessors, (1276), 0 states have call successors, (0), 0 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 12:52:48,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 0 states have call successors, (0), 0 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 12:52:48,395 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 0 states have call successors, (0), 0 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 12:52:48,395 INFO L186 Difference]: Start difference. First operand has 194 places, 179 transitions, 420 flow. Second operand 8 states and 1276 transitions. [2021-11-23 12:52:48,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 214 transitions, 698 flow [2021-11-23 12:52:48,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 214 transitions, 654 flow, removed 19 selfloop flow, removed 9 redundant places. [2021-11-23 12:52:48,406 INFO L242 Difference]: Finished difference. Result has 193 places, 188 transitions, 510 flow [2021-11-23 12:52:48,406 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=510, PETRI_PLACES=193, PETRI_TRANSITIONS=188} [2021-11-23 12:52:48,408 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 6 predicate places. [2021-11-23 12:52:48,409 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 188 transitions, 510 flow [2021-11-23 12:52:48,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 154.25) internal successors, (1234), 8 states have internal predecessors, (1234), 0 states have call successors, (0), 0 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 12:52:48,410 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:52:48,410 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:48,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 12:52:48,411 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:52:48,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1127091148, now seen corresponding path program 1 times [2021-11-23 12:52:48,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:48,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303015581] [2021-11-23 12:52:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:48,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:52:48,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:48,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303015581] [2021-11-23 12:52:48,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303015581] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:52:48,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097799088] [2021-11-23 12:52:48,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:48,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:52:48,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:52:48,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:52:48,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 12:52:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:48,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 12:52:48,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:52:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:52:50,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:52:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:52:50,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097799088] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:52:50,674 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:52:50,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 8] total 25 [2021-11-23 12:52:50,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146311211] [2021-11-23 12:52:50,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:52:50,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-23 12:52:50,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:50,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-23 12:52:50,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-11-23 12:52:50,686 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 206 [2021-11-23 12:52:50,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 188 transitions, 510 flow. Second operand has 25 states, 25 states have (on average 137.56) internal successors, (3439), 25 states have internal predecessors, (3439), 0 states have call successors, (0), 0 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 12:52:50,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:52:50,692 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 206 [2021-11-23 12:52:50,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:52:53,557 INFO L129 PetriNetUnfolder]: 888/2129 cut-off events. [2021-11-23 12:52:53,557 INFO L130 PetriNetUnfolder]: For 1693/1694 co-relation queries the response was YES. [2021-11-23 12:52:53,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4898 conditions, 2129 events. 888/2129 cut-off events. For 1693/1694 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 12510 event pairs, 31 based on Foata normal form. 20/2042 useless extension candidates. Maximal degree in co-relation 4886. Up to 594 conditions per place. [2021-11-23 12:52:53,595 INFO L132 encePairwiseOnDemand]: 181/206 looper letters, 92 selfloop transitions, 54 changer transitions 28/291 dead transitions. [2021-11-23 12:52:53,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 291 transitions, 1287 flow [2021-11-23 12:52:53,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-23 12:52:53,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-11-23 12:52:53,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 5482 transitions. [2021-11-23 12:52:53,675 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6652912621359224 [2021-11-23 12:52:53,675 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 5482 transitions. [2021-11-23 12:52:53,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 5482 transitions. [2021-11-23 12:52:53,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:52:53,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 5482 transitions. [2021-11-23 12:52:53,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 137.05) internal successors, (5482), 40 states have internal predecessors, (5482), 0 states have call successors, (0), 0 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 12:52:53,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 206.0) internal successors, (8446), 41 states have internal predecessors, (8446), 0 states have call successors, (0), 0 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 12:52:53,726 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 206.0) internal successors, (8446), 41 states have internal predecessors, (8446), 0 states have call successors, (0), 0 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 12:52:53,726 INFO L186 Difference]: Start difference. First operand has 193 places, 188 transitions, 510 flow. Second operand 40 states and 5482 transitions. [2021-11-23 12:52:53,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 291 transitions, 1287 flow [2021-11-23 12:52:53,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 291 transitions, 1281 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-11-23 12:52:53,741 INFO L242 Difference]: Finished difference. Result has 243 places, 219 transitions, 907 flow [2021-11-23 12:52:53,741 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=907, PETRI_PLACES=243, PETRI_TRANSITIONS=219} [2021-11-23 12:52:53,742 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 56 predicate places. [2021-11-23 12:52:53,742 INFO L470 AbstractCegarLoop]: Abstraction has has 243 places, 219 transitions, 907 flow [2021-11-23 12:52:53,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 137.56) internal successors, (3439), 25 states have internal predecessors, (3439), 0 states have call successors, (0), 0 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 12:52:53,745 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:52:53,746 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:52:53,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 12:52:53,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:52:53,970 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:52:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1409578771, now seen corresponding path program 1 times [2021-11-23 12:52:53,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:53,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065711343] [2021-11-23 12:52:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:53,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:54,925 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:52:54,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:54,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065711343] [2021-11-23 12:52:54,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065711343] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:52:54,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465304938] [2021-11-23 12:52:54,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:54,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:52:54,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:52:54,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:52:54,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 12:52:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:55,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-23 12:52:55,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:52:57,667 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 12:52:57,672 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 12:52:57,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 14 [2021-11-23 12:52:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:52:58,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:52:58,597 INFO L354 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2021-11-23 12:52:58,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2021-11-23 12:52:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 12:52:59,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465304938] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:52:59,260 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:52:59,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25, 11] total 50 [2021-11-23 12:52:59,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171128891] [2021-11-23 12:52:59,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:52:59,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-23 12:52:59,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:59,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-23 12:52:59,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=2219, Unknown=0, NotChecked=0, Total=2450 [2021-11-23 12:52:59,276 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 206 [2021-11-23 12:52:59,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 219 transitions, 907 flow. Second operand has 50 states, 50 states have (on average 113.76) internal successors, (5688), 50 states have internal predecessors, (5688), 0 states have call successors, (0), 0 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 12:52:59,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:52:59,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 206 [2021-11-23 12:52:59,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:53:14,756 INFO L129 PetriNetUnfolder]: 6979/14219 cut-off events. [2021-11-23 12:53:14,756 INFO L130 PetriNetUnfolder]: For 28163/28173 co-relation queries the response was YES. [2021-11-23 12:53:14,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39463 conditions, 14219 events. 6979/14219 cut-off events. For 28163/28173 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 118813 event pairs, 366 based on Foata normal form. 98/13633 useless extension candidates. Maximal degree in co-relation 39437. Up to 4052 conditions per place. [2021-11-23 12:53:15,070 INFO L132 encePairwiseOnDemand]: 174/206 looper letters, 531 selfloop transitions, 485 changer transitions 53/1163 dead transitions. [2021-11-23 12:53:15,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 1163 transitions, 7999 flow [2021-11-23 12:53:15,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-23 12:53:15,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-11-23 12:53:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 11633 transitions. [2021-11-23 12:53:15,156 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5762334059837527 [2021-11-23 12:53:15,156 INFO L72 ComplementDD]: Start complementDD. Operand 98 states and 11633 transitions. [2021-11-23 12:53:15,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 11633 transitions. [2021-11-23 12:53:15,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:53:15,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 98 states and 11633 transitions. [2021-11-23 12:53:15,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 99 states, 98 states have (on average 118.70408163265306) internal successors, (11633), 98 states have internal predecessors, (11633), 0 states have call successors, (0), 0 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 12:53:15,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 99 states, 99 states have (on average 206.0) internal successors, (20394), 99 states have internal predecessors, (20394), 0 states have call successors, (0), 0 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 12:53:15,286 INFO L81 ComplementDD]: Finished complementDD. Result has 99 states, 99 states have (on average 206.0) internal successors, (20394), 99 states have internal predecessors, (20394), 0 states have call successors, (0), 0 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 12:53:15,287 INFO L186 Difference]: Start difference. First operand has 243 places, 219 transitions, 907 flow. Second operand 98 states and 11633 transitions. [2021-11-23 12:53:15,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 1163 transitions, 7999 flow [2021-11-23 12:53:15,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1163 transitions, 7358 flow, removed 300 selfloop flow, removed 19 redundant places. [2021-11-23 12:53:15,451 INFO L242 Difference]: Finished difference. Result has 333 places, 742 transitions, 5394 flow [2021-11-23 12:53:15,452 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=98, PETRI_FLOW=5394, PETRI_PLACES=333, PETRI_TRANSITIONS=742} [2021-11-23 12:53:15,456 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 146 predicate places. [2021-11-23 12:53:15,456 INFO L470 AbstractCegarLoop]: Abstraction has has 333 places, 742 transitions, 5394 flow [2021-11-23 12:53:15,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 113.76) internal successors, (5688), 50 states have internal predecessors, (5688), 0 states have call successors, (0), 0 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 12:53:15,459 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:53:15,460 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:15,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 12:53:15,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:53:15,685 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:53:15,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:15,686 INFO L85 PathProgramCache]: Analyzing trace with hash 330123033, now seen corresponding path program 2 times [2021-11-23 12:53:15,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:15,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538261453] [2021-11-23 12:53:15,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:15,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:53:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:53:16,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:53:16,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538261453] [2021-11-23 12:53:16,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538261453] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:53:16,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907747619] [2021-11-23 12:53:16,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 12:53:16,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:53:16,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:53:16,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:53:16,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 12:53:17,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 12:53:17,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:53:17,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-23 12:53:17,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:53:17,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 12:53:17,319 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 12:53:17,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 12:53:18,741 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-23 12:53:18,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2021-11-23 12:53:18,853 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 12:53:18,856 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 12:53:18,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 14 [2021-11-23 12:53:19,320 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 12:53:19,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:53:20,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 42 [2021-11-23 12:53:21,635 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 12:53:21,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907747619] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:53:21,636 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:53:21,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 18, 18] total 54 [2021-11-23 12:53:21,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595341693] [2021-11-23 12:53:21,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:53:21,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-23 12:53:21,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:53:21,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-23 12:53:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=2630, Unknown=1, NotChecked=0, Total=2862 [2021-11-23 12:53:21,653 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 206 [2021-11-23 12:53:21,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 742 transitions, 5394 flow. Second operand has 54 states, 54 states have (on average 100.98148148148148) internal successors, (5453), 54 states have internal predecessors, (5453), 0 states have call successors, (0), 0 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 12:53:21,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:53:21,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 206 [2021-11-23 12:53:21,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:53:42,887 INFO L129 PetriNetUnfolder]: 15269/31365 cut-off events. [2021-11-23 12:53:42,887 INFO L130 PetriNetUnfolder]: For 105158/105551 co-relation queries the response was YES. [2021-11-23 12:53:43,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103227 conditions, 31365 events. 15269/31365 cut-off events. For 105158/105551 co-relation queries the response was YES. Maximal size of possible extension queue 1410. Compared 305888 event pairs, 1372 based on Foata normal form. 470/30197 useless extension candidates. Maximal degree in co-relation 103182. Up to 8204 conditions per place. [2021-11-23 12:53:43,550 INFO L132 encePairwiseOnDemand]: 173/206 looper letters, 1020 selfloop transitions, 817 changer transitions 46/1969 dead transitions. [2021-11-23 12:53:43,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1969 transitions, 17696 flow [2021-11-23 12:53:43,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-23 12:53:43,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-11-23 12:53:43,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 10338 transitions. [2021-11-23 12:53:43,588 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5173656290661596 [2021-11-23 12:53:43,589 INFO L72 ComplementDD]: Start complementDD. Operand 97 states and 10338 transitions. [2021-11-23 12:53:43,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 10338 transitions. [2021-11-23 12:53:43,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:53:43,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 97 states and 10338 transitions. [2021-11-23 12:53:43,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 98 states, 97 states have (on average 106.57731958762886) internal successors, (10338), 97 states have internal predecessors, (10338), 0 states have call successors, (0), 0 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 12:53:43,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 98 states, 98 states have (on average 206.0) internal successors, (20188), 98 states have internal predecessors, (20188), 0 states have call successors, (0), 0 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 12:53:43,678 INFO L81 ComplementDD]: Finished complementDD. Result has 98 states, 98 states have (on average 206.0) internal successors, (20188), 98 states have internal predecessors, (20188), 0 states have call successors, (0), 0 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 12:53:43,678 INFO L186 Difference]: Start difference. First operand has 333 places, 742 transitions, 5394 flow. Second operand 97 states and 10338 transitions. [2021-11-23 12:53:43,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1969 transitions, 17696 flow [2021-11-23 12:53:45,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1969 transitions, 16974 flow, removed 299 selfloop flow, removed 19 redundant places. [2021-11-23 12:53:45,127 INFO L242 Difference]: Finished difference. Result has 444 places, 1406 transitions, 13726 flow [2021-11-23 12:53:45,128 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=4607, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=97, PETRI_FLOW=13726, PETRI_PLACES=444, PETRI_TRANSITIONS=1406} [2021-11-23 12:53:45,129 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 257 predicate places. [2021-11-23 12:53:45,129 INFO L470 AbstractCegarLoop]: Abstraction has has 444 places, 1406 transitions, 13726 flow [2021-11-23 12:53:45,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 100.98148148148148) internal successors, (5453), 54 states have internal predecessors, (5453), 0 states have call successors, (0), 0 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 12:53:45,131 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:53:45,131 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:53:45,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 12:53:45,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:53:45,345 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:53:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:53:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2083443477, now seen corresponding path program 3 times [2021-11-23 12:53:45,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:53:45,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342073140] [2021-11-23 12:53:45,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:53:45,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:53:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:53:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 12:53:45,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:53:45,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342073140] [2021-11-23 12:53:45,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342073140] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:53:45,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994253385] [2021-11-23 12:53:45,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 12:53:45,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:53:45,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:53:45,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:53:45,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 12:53:46,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 12:53:46,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:53:46,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-23 12:53:46,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:53:47,272 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-23 12:53:47,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-11-23 12:53:47,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 12:53:47,372 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 12:53:47,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 14 [2021-11-23 12:53:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 12:53:47,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:53:49,365 INFO L354 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2021-11-23 12:53:49,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 46 [2021-11-23 12:53:49,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 12:53:49,396 INFO L354 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2021-11-23 12:53:49,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2021-11-23 12:53:49,995 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 12:53:49,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994253385] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:53:49,996 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:53:49,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 41 [2021-11-23 12:53:49,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389206465] [2021-11-23 12:53:49,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:53:49,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-23 12:53:49,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:53:49,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-23 12:53:49,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1461, Unknown=0, NotChecked=0, Total=1640 [2021-11-23 12:53:50,004 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 206 [2021-11-23 12:53:50,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1406 transitions, 13726 flow. Second operand has 41 states, 41 states have (on average 116.5609756097561) internal successors, (4779), 41 states have internal predecessors, (4779), 0 states have call successors, (0), 0 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 12:53:50,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-23 12:53:50,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 206 [2021-11-23 12:53:50,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-23 12:54:19,150 INFO L129 PetriNetUnfolder]: 30305/61883 cut-off events. [2021-11-23 12:54:19,150 INFO L130 PetriNetUnfolder]: For 342679/343812 co-relation queries the response was YES. [2021-11-23 12:54:20,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 255812 conditions, 61883 events. 30305/61883 cut-off events. For 342679/343812 co-relation queries the response was YES. Maximal size of possible extension queue 2388. Compared 658660 event pairs, 2382 based on Foata normal form. 332/58990 useless extension candidates. Maximal degree in co-relation 255724. Up to 23179 conditions per place. [2021-11-23 12:54:21,389 INFO L132 encePairwiseOnDemand]: 174/206 looper letters, 1486 selfloop transitions, 1291 changer transitions 30/2915 dead transitions. [2021-11-23 12:54:21,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 2915 transitions, 36839 flow [2021-11-23 12:54:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-23 12:54:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-11-23 12:54:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5050 transitions. [2021-11-23 12:54:21,399 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5979161733364906 [2021-11-23 12:54:21,400 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5050 transitions. [2021-11-23 12:54:21,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5050 transitions. [2021-11-23 12:54:21,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:54:21,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5050 transitions. [2021-11-23 12:54:21,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 123.17073170731707) internal successors, (5050), 41 states have internal predecessors, (5050), 0 states have call successors, (0), 0 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 12:54:21,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 206.0) internal successors, (8652), 42 states have internal predecessors, (8652), 0 states have call successors, (0), 0 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 12:54:21,436 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 206.0) internal successors, (8652), 42 states have internal predecessors, (8652), 0 states have call successors, (0), 0 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 12:54:21,436 INFO L186 Difference]: Start difference. First operand has 444 places, 1406 transitions, 13726 flow. Second operand 41 states and 5050 transitions. [2021-11-23 12:54:21,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 2915 transitions, 36839 flow [2021-11-23 12:54:33,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 2915 transitions, 34021 flow, removed 1368 selfloop flow, removed 41 redundant places. [2021-11-23 12:54:33,319 INFO L242 Difference]: Finished difference. Result has 458 places, 2469 transitions, 29897 flow [2021-11-23 12:54:33,322 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=12502, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=428, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=653, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=29897, PETRI_PLACES=458, PETRI_TRANSITIONS=2469} [2021-11-23 12:54:33,322 INFO L334 CegarLoopForPetriNet]: 187 programPoint places, 271 predicate places. [2021-11-23 12:54:33,323 INFO L470 AbstractCegarLoop]: Abstraction has has 458 places, 2469 transitions, 29897 flow [2021-11-23 12:54:33,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 116.5609756097561) internal successors, (4779), 41 states have internal predecessors, (4779), 0 states have call successors, (0), 0 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 12:54:33,324 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-23 12:54:33,325 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:33,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 12:54:33,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 12:54:33,553 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-23 12:54:33,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:54:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1903920789, now seen corresponding path program 4 times [2021-11-23 12:54:33,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:54:33,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877818088] [2021-11-23 12:54:33,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:54:33,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:54:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:54:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:54:34,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:54:34,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877818088] [2021-11-23 12:54:34,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877818088] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:54:34,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626345626] [2021-11-23 12:54:34,956 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 12:54:34,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:54:34,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:54:34,961 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:54:34,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90d0a7a0-4807-4fad-b3bd-d02009a1f906/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 12:54:35,110 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 12:54:35,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:54:35,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 72 conjunts are in the unsatisfiable core [2021-11-23 12:54:35,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:54:36,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-23 12:54:37,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-23 12:54:37,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-23 12:54:37,719 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-23 12:54:37,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-23 12:54:37,851 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-11-23 12:54:37,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-11-23 12:54:37,930 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 12:54:37,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2021-11-23 12:54:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 12:54:38,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:55:34,402 INFO L354 Elim1Store]: treesize reduction 10, result has 28.6 percent of original size [2021-11-23 12:55:34,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1931459 treesize of output 1853335