./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/unroll-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7071c3ff0bb3d9f81f254bc51d27ce3551a85cc081b1b878560a7d4c8f67639e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:09:10,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:09:10,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:09:10,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:09:10,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:09:10,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:09:10,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:09:10,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:09:10,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:09:10,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:09:10,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:09:10,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:09:10,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:09:10,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:09:10,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:09:10,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:09:10,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:09:10,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:09:10,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:09:10,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:09:10,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:09:10,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:09:10,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:09:10,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:09:10,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:09:10,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:09:10,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:09:10,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:09:10,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:09:10,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:09:10,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:09:10,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:09:10,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:09:10,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:09:10,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:09:10,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:09:10,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:09:10,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:09:10,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:09:10,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:09:10,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:09:10,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:09:10,910 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:09:10,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:09:10,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:09:10,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:09:10,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:09:10,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:09:10,920 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:09:10,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:09:10,921 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:09:10,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:09:10,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:09:10,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:09:10,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:09:10,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:09:10,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:09:10,924 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:09:10,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:09:10,924 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:09:10,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:09:10,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:09:10,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:09:10,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:09:10,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:09:10,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:09:10,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:09:10,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:09:10,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:09:10,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:09:10,927 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:09:10,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:09:10,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:09:10,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:09:10,929 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_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7071c3ff0bb3d9f81f254bc51d27ce3551a85cc081b1b878560a7d4c8f67639e [2021-10-28 23:09:11,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:09:11,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:09:11,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:09:11,254 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:09:11,254 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:09:11,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/unroll-4.wvr.c [2021-10-28 23:09:11,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/data/e18d38ae4/b3a2cd08e5a147e68717d1e261b441af/FLAG26d77f879 [2021-10-28 23:09:11,884 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:09:11,885 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/sv-benchmarks/c/weaver/unroll-4.wvr.c [2021-10-28 23:09:11,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/data/e18d38ae4/b3a2cd08e5a147e68717d1e261b441af/FLAG26d77f879 [2021-10-28 23:09:12,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/data/e18d38ae4/b3a2cd08e5a147e68717d1e261b441af [2021-10-28 23:09:12,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:09:12,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:09:12,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:12,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:09:12,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:09:12,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58916132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12, skipping insertion in model container [2021-10-28 23:09:12,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:09:12,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:09:12,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/sv-benchmarks/c/weaver/unroll-4.wvr.c[2572,2585] [2021-10-28 23:09:12,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:12,534 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:09:12,556 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/sv-benchmarks/c/weaver/unroll-4.wvr.c[2572,2585] [2021-10-28 23:09:12,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:12,575 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:09:12,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12 WrapperNode [2021-10-28 23:09:12,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:12,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:12,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:09:12,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:09:12,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:12,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:09:12,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:09:12,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:09:12,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:09:12,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:09:12,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:09:12,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:09:12,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (1/1) ... [2021-10-28 23:09:12,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:09:12,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:12,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:12,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:09:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:09:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:09:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 23:09:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 23:09:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:09:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:09:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:09:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:09:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:09:12,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:09:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:09:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:09:12,786 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:09:13,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:09:13,325 INFO L299 CfgBuilder]: Removed 29 assume(true) statements. [2021-10-28 23:09:13,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:13 BoogieIcfgContainer [2021-10-28 23:09:13,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:09:13,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:09:13,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:09:13,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:09:13,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:09:12" (1/3) ... [2021-10-28 23:09:13,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254a4650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:09:13, skipping insertion in model container [2021-10-28 23:09:13,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:12" (2/3) ... [2021-10-28 23:09:13,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254a4650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:09:13, skipping insertion in model container [2021-10-28 23:09:13,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:13" (3/3) ... [2021-10-28 23:09:13,336 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.c [2021-10-28 23:09:13,342 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:09:13,342 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:09:13,342 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:09:13,342 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:09:13,379 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,379 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,380 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,380 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,380 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,381 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,382 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,382 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,382 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,382 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,387 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,387 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,388 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,389 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,389 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,389 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,390 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,390 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,390 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,390 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,390 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,392 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,392 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,392 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,392 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,392 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,392 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,393 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,393 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,393 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,393 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,395 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,395 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,396 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,396 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,397 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,397 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,398 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,398 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,398 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,398 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,399 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,399 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,400 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,401 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,401 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,401 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,401 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,402 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,402 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,402 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,402 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,403 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,403 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,403 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,403 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,403 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,404 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,404 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,404 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,404 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,404 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,405 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,405 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,405 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,405 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,405 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,406 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,406 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,406 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,406 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,406 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,407 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,407 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,408 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,409 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,409 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,409 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,410 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,412 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,412 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,413 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,413 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,413 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,413 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,413 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,414 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,417 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,418 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,418 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,419 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,419 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,424 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,425 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,425 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,425 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,425 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,425 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:09:13,442 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-28 23:09:13,503 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:09:13,510 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:09:13,511 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:09:13,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 164 places, 173 transitions, 362 flow [2021-10-28 23:09:13,673 INFO L129 PetriNetUnfolder]: 16/171 cut-off events. [2021-10-28 23:09:13,674 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 23:09:13,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 171 events. 16/171 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 154 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2021-10-28 23:09:13,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 173 transitions, 362 flow [2021-10-28 23:09:13,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 163 transitions, 338 flow [2021-10-28 23:09:13,729 INFO L129 PetriNetUnfolder]: 13/137 cut-off events. [2021-10-28 23:09:13,730 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 23:09:13,730 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:09:13,731 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] [2021-10-28 23:09:13,731 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:09:13,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:13,737 INFO L85 PathProgramCache]: Analyzing trace with hash 815701745, now seen corresponding path program 1 times [2021-10-28 23:09:13,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:13,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390395246] [2021-10-28 23:09:13,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:13,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:13,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:13,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390395246] [2021-10-28 23:09:13,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390395246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:13,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:09:13,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:09:13,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694833588] [2021-10-28 23:09:14,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:09:14,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:14,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:09:14,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:09:14,030 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 173 [2021-10-28 23:09:14,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 163 transitions, 338 flow. Second operand has 2 states, 2 states have (on average 160.0) internal successors, (320), 2 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:09:14,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 173 [2021-10-28 23:09:14,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:09:14,092 INFO L129 PetriNetUnfolder]: 3/150 cut-off events. [2021-10-28 23:09:14,092 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 23:09:14,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 150 events. 3/150 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 127 event pairs, 0 based on Foata normal form. 13/150 useless extension candidates. Maximal degree in co-relation 156. Up to 2 conditions per place. [2021-10-28 23:09:14,096 INFO L132 encePairwiseOnDemand]: 160/173 looper letters, 0 selfloop transitions, 0 changer transitions 5/150 dead transitions. [2021-10-28 23:09:14,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 150 transitions, 312 flow [2021-10-28 23:09:14,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:09:14,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 23:09:14,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 331 transitions. [2021-10-28 23:09:14,111 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9566473988439307 [2021-10-28 23:09:14,112 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 331 transitions. [2021-10-28 23:09:14,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 331 transitions. [2021-10-28 23:09:14,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:14,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 331 transitions. [2021-10-28 23:09:14,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 165.5) internal successors, (331), 2 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,130 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,132 INFO L186 Difference]: Start difference. First operand has 154 places, 163 transitions, 338 flow. Second operand 2 states and 331 transitions. [2021-10-28 23:09:14,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 150 transitions, 312 flow [2021-10-28 23:09:14,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 150 transitions, 304 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-28 23:09:14,142 INFO L242 Difference]: Finished difference. Result has 151 places, 145 transitions, 294 flow [2021-10-28 23:09:14,145 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=294, PETRI_PLACES=151, PETRI_TRANSITIONS=145} [2021-10-28 23:09:14,146 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, -3 predicate places. [2021-10-28 23:09:14,146 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 145 transitions, 294 flow [2021-10-28 23:09:14,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 160.0) internal successors, (320), 2 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,147 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:09:14,147 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] [2021-10-28 23:09:14,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:09:14,148 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:09:14,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:14,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2035761527, now seen corresponding path program 1 times [2021-10-28 23:09:14,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:14,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85163830] [2021-10-28 23:09:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:14,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:14,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:14,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:14,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85163830] [2021-10-28 23:09:14,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85163830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:14,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:09:14,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:09:14,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825665974] [2021-10-28 23:09:14,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:09:14,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:14,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:09:14,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:09:14,425 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 173 [2021-10-28 23:09:14,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 145 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:09:14,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 173 [2021-10-28 23:09:14,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:09:14,719 INFO L129 PetriNetUnfolder]: 87/536 cut-off events. [2021-10-28 23:09:14,723 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:09:14,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 536 events. 87/536 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2370 event pairs, 24 based on Foata normal form. 1/492 useless extension candidates. Maximal degree in co-relation 735. Up to 98 conditions per place. [2021-10-28 23:09:14,731 INFO L132 encePairwiseOnDemand]: 166/173 looper letters, 57 selfloop transitions, 5 changer transitions 3/173 dead transitions. [2021-10-28 23:09:14,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 173 transitions, 480 flow [2021-10-28 23:09:14,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:09:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 23:09:14,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 768 transitions. [2021-10-28 23:09:14,739 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7398843930635838 [2021-10-28 23:09:14,740 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 768 transitions. [2021-10-28 23:09:14,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 768 transitions. [2021-10-28 23:09:14,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:14,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 768 transitions. [2021-10-28 23:09:14,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,753 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,753 INFO L186 Difference]: Start difference. First operand has 151 places, 145 transitions, 294 flow. Second operand 6 states and 768 transitions. [2021-10-28 23:09:14,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 173 transitions, 480 flow [2021-10-28 23:09:14,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 173 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 23:09:14,761 INFO L242 Difference]: Finished difference. Result has 154 places, 148 transitions, 323 flow [2021-10-28 23:09:14,762 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=154, PETRI_TRANSITIONS=148} [2021-10-28 23:09:14,763 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 0 predicate places. [2021-10-28 23:09:14,763 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 148 transitions, 323 flow [2021-10-28 23:09:14,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.66666666666667) internal successors, (724), 6 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,764 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:09:14,764 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] [2021-10-28 23:09:14,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:09:14,765 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:09:14,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1130612991, now seen corresponding path program 1 times [2021-10-28 23:09:14,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:14,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603520587] [2021-10-28 23:09:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:14,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:14,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:14,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603520587] [2021-10-28 23:09:14,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603520587] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:14,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:09:14,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:09:14,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571704342] [2021-10-28 23:09:14,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:09:14,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:14,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:09:14,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:09:14,978 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 173 [2021-10-28 23:09:14,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 148 transitions, 323 flow. Second operand has 5 states, 5 states have (on average 140.4) internal successors, (702), 5 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:14,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:09:14,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 173 [2021-10-28 23:09:14,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:09:15,270 INFO L129 PetriNetUnfolder]: 117/820 cut-off events. [2021-10-28 23:09:15,270 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:09:15,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 820 events. 117/820 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4131 event pairs, 77 based on Foata normal form. 0/718 useless extension candidates. Maximal degree in co-relation 1126. Up to 195 conditions per place. [2021-10-28 23:09:15,282 INFO L132 encePairwiseOnDemand]: 166/173 looper letters, 28 selfloop transitions, 5 changer transitions 2/162 dead transitions. [2021-10-28 23:09:15,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 162 transitions, 421 flow [2021-10-28 23:09:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:09:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 23:09:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 865 transitions. [2021-10-28 23:09:15,288 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-10-28 23:09:15,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 865 transitions. [2021-10-28 23:09:15,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 865 transitions. [2021-10-28 23:09:15,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:15,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 865 transitions. [2021-10-28 23:09:15,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.16666666666666) internal successors, (865), 6 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:15,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:15,298 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 173.0) internal successors, (1211), 7 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:15,299 INFO L186 Difference]: Start difference. First operand has 154 places, 148 transitions, 323 flow. Second operand 6 states and 865 transitions. [2021-10-28 23:09:15,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 162 transitions, 421 flow [2021-10-28 23:09:15,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 162 transitions, 417 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-10-28 23:09:15,312 INFO L242 Difference]: Finished difference. Result has 158 places, 150 transitions, 347 flow [2021-10-28 23:09:15,313 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=158, PETRI_TRANSITIONS=150} [2021-10-28 23:09:15,313 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 4 predicate places. [2021-10-28 23:09:15,313 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 150 transitions, 347 flow [2021-10-28 23:09:15,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 140.4) internal successors, (702), 5 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:15,320 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:09:15,320 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] [2021-10-28 23:09:15,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:09:15,321 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:09:15,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:15,324 INFO L85 PathProgramCache]: Analyzing trace with hash 504103543, now seen corresponding path program 2 times [2021-10-28 23:09:15,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:15,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002388955] [2021-10-28 23:09:15,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:15,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:09:15,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:15,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002388955] [2021-10-28 23:09:15,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002388955] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:09:15,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158433719] [2021-10-28 23:09:15,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:09:15,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:09:15,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:15,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:09:15,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:09:15,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:09:15,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:09:15,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:09:15,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:09:16,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158433719] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:16,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:09:16,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2021-10-28 23:09:16,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416002400] [2021-10-28 23:09:16,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:09:16,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:16,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:09:16,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:09:16,321 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 173 [2021-10-28 23:09:16,323 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 150 transitions, 347 flow. Second operand has 8 states, 8 states have (on average 120.625) internal successors, (965), 8 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:16,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:09:16,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 173 [2021-10-28 23:09:16,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:09:16,683 INFO L129 PetriNetUnfolder]: 21/369 cut-off events. [2021-10-28 23:09:16,683 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-28 23:09:16,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 369 events. 21/369 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1144 event pairs, 10 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 497. Up to 58 conditions per place. [2021-10-28 23:09:16,689 INFO L132 encePairwiseOnDemand]: 161/173 looper letters, 30 selfloop transitions, 11 changer transitions 0/154 dead transitions. [2021-10-28 23:09:16,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 154 transitions, 437 flow [2021-10-28 23:09:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:09:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 23:09:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1329 transitions. [2021-10-28 23:09:16,696 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.698370993168681 [2021-10-28 23:09:16,696 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1329 transitions. [2021-10-28 23:09:16,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1329 transitions. [2021-10-28 23:09:16,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:16,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1329 transitions. [2021-10-28 23:09:16,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 120.81818181818181) internal successors, (1329), 11 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:16,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:16,712 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:16,712 INFO L186 Difference]: Start difference. First operand has 158 places, 150 transitions, 347 flow. Second operand 11 states and 1329 transitions. [2021-10-28 23:09:16,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 154 transitions, 437 flow [2021-10-28 23:09:16,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 154 transitions, 429 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-10-28 23:09:16,722 INFO L242 Difference]: Finished difference. Result has 165 places, 151 transitions, 369 flow [2021-10-28 23:09:16,722 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=369, PETRI_PLACES=165, PETRI_TRANSITIONS=151} [2021-10-28 23:09:16,723 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 11 predicate places. [2021-10-28 23:09:16,724 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 151 transitions, 369 flow [2021-10-28 23:09:16,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 120.625) internal successors, (965), 8 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:16,725 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:09:16,725 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] [2021-10-28 23:09:16,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:16,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:09:16,950 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:09:16,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:16,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1694813806, now seen corresponding path program 1 times [2021-10-28 23:09:16,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:16,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496545203] [2021-10-28 23:09:16,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:16,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:09:17,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:17,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496545203] [2021-10-28 23:09:17,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496545203] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:17,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:09:17,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:09:17,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728006356] [2021-10-28 23:09:17,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:09:17,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:17,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:09:17,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:09:17,107 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 173 [2021-10-28 23:09:17,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 151 transitions, 369 flow. Second operand has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:17,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:09:17,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 173 [2021-10-28 23:09:17,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:09:17,273 INFO L129 PetriNetUnfolder]: 76/643 cut-off events. [2021-10-28 23:09:17,273 INFO L130 PetriNetUnfolder]: For 45/60 co-relation queries the response was YES. [2021-10-28 23:09:17,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 643 events. 76/643 cut-off events. For 45/60 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3145 event pairs, 30 based on Foata normal form. 3/601 useless extension candidates. Maximal degree in co-relation 944. Up to 145 conditions per place. [2021-10-28 23:09:17,281 INFO L132 encePairwiseOnDemand]: 168/173 looper letters, 25 selfloop transitions, 4 changer transitions 1/162 dead transitions. [2021-10-28 23:09:17,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 162 transitions, 464 flow [2021-10-28 23:09:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:09:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-28 23:09:17,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 597 transitions. [2021-10-28 23:09:17,284 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8627167630057804 [2021-10-28 23:09:17,285 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 597 transitions. [2021-10-28 23:09:17,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 597 transitions. [2021-10-28 23:09:17,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:17,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 597 transitions. [2021-10-28 23:09:17,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 149.25) internal successors, (597), 4 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:17,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:17,309 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 173.0) internal successors, (865), 5 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:17,309 INFO L186 Difference]: Start difference. First operand has 165 places, 151 transitions, 369 flow. Second operand 4 states and 597 transitions. [2021-10-28 23:09:17,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 162 transitions, 464 flow [2021-10-28 23:09:17,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 162 transitions, 444 flow, removed 0 selfloop flow, removed 9 redundant places. [2021-10-28 23:09:17,315 INFO L242 Difference]: Finished difference. Result has 162 places, 155 transitions, 389 flow [2021-10-28 23:09:17,316 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=389, PETRI_PLACES=162, PETRI_TRANSITIONS=155} [2021-10-28 23:09:17,316 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, 8 predicate places. [2021-10-28 23:09:17,316 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 155 transitions, 389 flow [2021-10-28 23:09:17,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:17,317 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:09:17,317 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] [2021-10-28 23:09:17,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:09:17,317 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-28 23:09:17,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:17,318 INFO L85 PathProgramCache]: Analyzing trace with hash 703692666, now seen corresponding path program 2 times [2021-10-28 23:09:17,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:17,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418718419] [2021-10-28 23:09:17,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:17,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:09:17,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:17,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418718419] [2021-10-28 23:09:17,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418718419] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:09:17,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000048460] [2021-10-28 23:09:17,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:09:17,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:09:17,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:17,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:09:17,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:09:17,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:09:17,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:09:17,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:09:17,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:09:17,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000048460] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:17,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:09:17,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2021-10-28 23:09:17,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794275466] [2021-10-28 23:09:17,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:09:17,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:17,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:09:17,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:09:17,967 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 173 [2021-10-28 23:09:17,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 155 transitions, 389 flow. Second operand has 9 states, 9 states have (on average 124.22222222222223) internal successors, (1118), 9 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:17,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:09:17,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 173 [2021-10-28 23:09:17,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:09:18,214 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-10-28 23:09:18,215 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:09:18,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-10-28 23:09:18,215 INFO L132 encePairwiseOnDemand]: 162/173 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2021-10-28 23:09:18,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 36 transitions, 109 flow [2021-10-28 23:09:18,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:09:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 23:09:18,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1348 transitions. [2021-10-28 23:09:18,221 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7083552285864425 [2021-10-28 23:09:18,221 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1348 transitions. [2021-10-28 23:09:18,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1348 transitions. [2021-10-28 23:09:18,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:18,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1348 transitions. [2021-10-28 23:09:18,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 122.54545454545455) internal successors, (1348), 11 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:18,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:18,233 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 173.0) internal successors, (2076), 12 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:18,234 INFO L186 Difference]: Start difference. First operand has 162 places, 155 transitions, 389 flow. Second operand 11 states and 1348 transitions. [2021-10-28 23:09:18,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 36 transitions, 109 flow [2021-10-28 23:09:18,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 36 transitions, 105 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 23:09:18,235 INFO L242 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2021-10-28 23:09:18,236 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2021-10-28 23:09:18,236 INFO L334 CegarLoopForPetriNet]: 154 programPoint places, -99 predicate places. [2021-10-28 23:09:18,236 INFO L470 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2021-10-28 23:09:18,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 124.22222222222223) internal successors, (1118), 9 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:18,240 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:09:18,241 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:09:18,241 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:09:18,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:18,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 23:09:18,460 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2021-10-28 23:09:18,462 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:09:18,462 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:09:18,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:09:18 BasicIcfg [2021-10-28 23:09:18,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:09:18,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:09:18,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:09:18,466 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:09:18,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:13" (3/4) ... [2021-10-28 23:09:18,470 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:09:18,477 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 23:09:18,478 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 23:09:18,483 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-10-28 23:09:18,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:09:18,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:09:18,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:09:18,527 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:09:18,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:09:18,529 INFO L168 Benchmark]: Toolchain (without parser) took 6273.37 ms. Allocated memory was 102.8 MB in the beginning and 138.4 MB in the end (delta: 35.7 MB). Free memory was 65.7 MB in the beginning and 36.9 MB in the end (delta: 28.8 MB). Peak memory consumption was 63.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:18,529 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:18,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.42 ms. Allocated memory is still 102.8 MB. Free memory was 65.5 MB in the beginning and 77.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:18,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.34 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 75.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:18,531 INFO L168 Benchmark]: Boogie Preprocessor took 44.50 ms. Allocated memory is still 102.8 MB. Free memory was 75.0 MB in the beginning and 73.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:18,531 INFO L168 Benchmark]: RCFGBuilder took 652.76 ms. Allocated memory is still 102.8 MB. Free memory was 73.6 MB in the beginning and 59.0 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:18,532 INFO L168 Benchmark]: TraceAbstraction took 5135.68 ms. Allocated memory was 102.8 MB in the beginning and 138.4 MB in the end (delta: 35.7 MB). Free memory was 58.6 MB in the beginning and 40.1 MB in the end (delta: 18.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:18,532 INFO L168 Benchmark]: Witness Printer took 62.06 ms. Allocated memory is still 138.4 MB. Free memory was 40.1 MB in the beginning and 36.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:18,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 317.42 ms. Allocated memory is still 102.8 MB. Free memory was 65.5 MB in the beginning and 77.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.34 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 75.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.50 ms. Allocated memory is still 102.8 MB. Free memory was 75.0 MB in the beginning and 73.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 652.76 ms. Allocated memory is still 102.8 MB. Free memory was 73.6 MB in the beginning and 59.0 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5135.68 ms. Allocated memory was 102.8 MB in the beginning and 138.4 MB in the end (delta: 35.7 MB). Free memory was 58.6 MB in the beginning and 40.1 MB in the end (delta: 18.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 16.1 GB. * Witness Printer took 62.06 ms. Allocated memory is still 138.4 MB. Free memory was 40.1 MB in the beginning and 36.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 94]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 225 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 213 SDslu, 142 SDs, 0 SdLazy, 263 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=5, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 735 NumberOfCodeBlocks, 706 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 727 ConstructedInterpolants, 0 QuantifiedInterpolants, 1719 SizeOfPredicates, 12 NumberOfNonLiveVariables, 376 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 7/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:09:18,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ab0923-e990-4270-a5e4-44d816ac9cf6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...