./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS --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 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:55:25,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:55:25,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:55:25,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:55:25,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:55:25,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:55:25,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:55:25,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:55:25,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:55:25,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:55:25,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:55:25,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:55:25,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:55:25,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:55:25,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:55:25,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:55:25,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:55:25,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:55:25,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:55:25,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:55:25,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:55:25,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:55:25,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:55:25,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:55:25,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:55:25,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:55:25,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:55:25,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:55:25,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:55:25,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:55:25,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:55:25,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:55:25,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:55:25,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:55:25,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:55:25,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:55:25,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:55:25,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:55:25,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:55:25,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:55:25,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:55:25,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 02:55:25,553 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:55:25,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:55:25,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:55:25,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:55:25,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:55:25,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:55:25,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:55:25,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:55:25,557 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:55:25,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:55:25,558 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:55:25,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:55:25,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:55:25,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:55:25,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:55:25,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:55:25,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:55:25,560 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:55:25,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:55:25,561 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:55:25,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:55:25,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:55:25,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:55:25,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:55:25,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:55:25,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:55:25,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:55:25,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:55:25,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:55:25,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:55:25,564 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:55:25,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:55:25,564 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:55:25,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:55:25,565 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 [2022-11-23 02:55:25,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:55:25,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:55:25,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:55:25,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:55:25,983 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:55:25,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2022-11-23 02:55:29,528 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:55:29,904 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:55:29,905 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2022-11-23 02:55:29,919 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/data/321412951/9493d4224c25487ca2b0ddafa8809250/FLAG727a93e47 [2022-11-23 02:55:29,935 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/data/321412951/9493d4224c25487ca2b0ddafa8809250 [2022-11-23 02:55:29,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:55:29,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:55:29,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:55:29,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:55:29,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:55:29,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:55:29" (1/1) ... [2022-11-23 02:55:29,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f49c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:29, skipping insertion in model container [2022-11-23 02:55:29,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:55:29" (1/1) ... [2022-11-23 02:55:29,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:55:30,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:55:30,491 WARN L237 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_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-11-23 02:55:30,507 WARN L237 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_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-11-23 02:55:30,517 WARN L237 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_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-11-23 02:55:30,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:55:30,550 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:55:30,613 WARN L237 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_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-11-23 02:55:30,622 WARN L237 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_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-11-23 02:55:30,630 WARN L237 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_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-11-23 02:55:30,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:55:30,694 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:55:30,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30 WrapperNode [2022-11-23 02:55:30,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:55:30,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:55:30,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:55:30,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:55:30,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,758 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-11-23 02:55:30,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:55:30,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:55:30,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:55:30,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:55:30,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,798 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:55:30,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:55:30,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:55:30,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:55:30,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (1/1) ... [2022-11-23 02:55:30,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:55:30,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:55:30,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:55:30,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:55:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-23 02:55:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-23 02:55:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-23 02:55:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-23 02:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 02:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:55:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 02:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:55:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:55:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:55:30,940 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:55:31,171 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:55:31,173 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:55:31,546 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:55:31,557 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:55:31,557 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 02:55:31,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:55:31 BoogieIcfgContainer [2022-11-23 02:55:31,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:55:31,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:55:31,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:55:31,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:55:31,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:55:29" (1/3) ... [2022-11-23 02:55:31,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737564f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:55:31, skipping insertion in model container [2022-11-23 02:55:31,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:55:30" (2/3) ... [2022-11-23 02:55:31,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737564f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:55:31, skipping insertion in model container [2022-11-23 02:55:31,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:55:31" (3/3) ... [2022-11-23 02:55:31,573 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2022-11-23 02:55:31,584 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:55:31,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:55:31,598 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 02:55:31,599 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:55:31,720 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 02:55:31,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 158 transitions, 332 flow [2022-11-23 02:55:31,875 INFO L130 PetriNetUnfolder]: 11/156 cut-off events. [2022-11-23 02:55:31,875 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 02:55:31,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 11/156 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 288 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-11-23 02:55:31,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 158 transitions, 332 flow [2022-11-23 02:55:31,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 146 transitions, 301 flow [2022-11-23 02:55:31,895 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:55:31,937 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 146 transitions, 301 flow [2022-11-23 02:55:31,940 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 146 transitions, 301 flow [2022-11-23 02:55:31,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 146 transitions, 301 flow [2022-11-23 02:55:31,993 INFO L130 PetriNetUnfolder]: 11/146 cut-off events. [2022-11-23 02:55:31,993 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 02:55:31,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 146 events. 11/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 266 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-11-23 02:55:31,999 INFO L119 LiptonReduction]: Number of co-enabled transitions 4890 [2022-11-23 02:55:52,891 INFO L134 LiptonReduction]: Checked pairs total: 9293 [2022-11-23 02:55:52,892 INFO L136 LiptonReduction]: Total number of compositions: 145 [2022-11-23 02:55:52,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:55:52,921 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@141853b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:55:52,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 02:55:52,926 INFO L130 PetriNetUnfolder]: 2/9 cut-off events. [2022-11-23 02:55:52,926 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:55:52,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:52,928 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-23 02:55:52,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:55:52,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:55:52,935 INFO L85 PathProgramCache]: Analyzing trace with hash 19249265, now seen corresponding path program 1 times [2022-11-23 02:55:52,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:55:52,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593657681] [2022-11-23 02:55:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:52,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:55:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:55:53,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:55:53,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:55:53,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593657681] [2022-11-23 02:55:53,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593657681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:55:53,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:55:53,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:55:53,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566398678] [2022-11-23 02:55:53,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:55:53,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:55:53,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:55:53,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:55:53,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:55:53,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 303 [2022-11-23 02:55:53,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 79 flow. Second operand has 2 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:53,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:55:53,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 303 [2022-11-23 02:55:53,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:55:53,448 INFO L130 PetriNetUnfolder]: 345/569 cut-off events. [2022-11-23 02:55:53,448 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-23 02:55:53,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 569 events. 345/569 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2202 event pairs, 240 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 1024. Up to 520 conditions per place. [2022-11-23 02:55:53,457 INFO L137 encePairwiseOnDemand]: 299/303 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-11-23 02:55:53,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 31 transitions, 125 flow [2022-11-23 02:55:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:55:53,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 02:55:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 323 transitions. [2022-11-23 02:55:53,475 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.533003300330033 [2022-11-23 02:55:53,476 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 323 transitions. [2022-11-23 02:55:53,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 323 transitions. [2022-11-23 02:55:53,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:55:53,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 323 transitions. [2022-11-23 02:55:53,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:53,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:53,492 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:53,495 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 79 flow. Second operand 2 states and 323 transitions. [2022-11-23 02:55:53,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 31 transitions, 125 flow [2022-11-23 02:55:53,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 120 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 02:55:53,500 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 66 flow [2022-11-23 02:55:53,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2022-11-23 02:55:53,507 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2022-11-23 02:55:53,507 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 66 flow [2022-11-23 02:55:53,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:53,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:53,508 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 02:55:53,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:55:53,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:55:53,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:55:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1318625697, now seen corresponding path program 1 times [2022-11-23 02:55:53,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:55:53,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614782793] [2022-11-23 02:55:53,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:53,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:55:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:55:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:55:53,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:55:53,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614782793] [2022-11-23 02:55:53,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614782793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:55:53,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:55:53,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:55:53,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910092047] [2022-11-23 02:55:53,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:55:53,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:55:53,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:55:53,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:55:53,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:55:53,935 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 303 [2022-11-23 02:55:53,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:53,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:55:53,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 303 [2022-11-23 02:55:53,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:55:54,192 INFO L130 PetriNetUnfolder]: 484/818 cut-off events. [2022-11-23 02:55:54,192 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 02:55:54,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 818 events. 484/818 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3254 event pairs, 155 based on Foata normal form. 0/594 useless extension candidates. Maximal degree in co-relation 1601. Up to 459 conditions per place. [2022-11-23 02:55:54,201 INFO L137 encePairwiseOnDemand]: 299/303 looper letters, 44 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2022-11-23 02:55:54,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 50 transitions, 199 flow [2022-11-23 02:55:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:55:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:55:54,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 468 transitions. [2022-11-23 02:55:54,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5148514851485149 [2022-11-23 02:55:54,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 468 transitions. [2022-11-23 02:55:54,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 468 transitions. [2022-11-23 02:55:54,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:55:54,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 468 transitions. [2022-11-23 02:55:54,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,219 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,220 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 66 flow. Second operand 3 states and 468 transitions. [2022-11-23 02:55:54,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 50 transitions, 199 flow [2022-11-23 02:55:54,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 50 transitions, 199 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 02:55:54,222 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 80 flow [2022-11-23 02:55:54,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2022-11-23 02:55:54,224 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2022-11-23 02:55:54,224 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 80 flow [2022-11-23 02:55:54,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,225 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:54,225 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:55:54,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:55:54,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:55:54,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:55:54,231 INFO L85 PathProgramCache]: Analyzing trace with hash -2072270019, now seen corresponding path program 1 times [2022-11-23 02:55:54,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:55:54,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061905592] [2022-11-23 02:55:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:55:54,278 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:55:54,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089562817] [2022-11-23 02:55:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:54,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:55:54,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:55:54,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:55:54,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 02:55:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:55:54,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 02:55:54,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:55:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:55:54,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:55:54,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:55:54,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061905592] [2022-11-23 02:55:54,516 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:55:54,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089562817] [2022-11-23 02:55:54,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089562817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:55:54,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:55:54,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:55:54,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269748888] [2022-11-23 02:55:54,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:55:54,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:55:54,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:55:54,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:55:54,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:55:54,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 303 [2022-11-23 02:55:54,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:55:54,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 303 [2022-11-23 02:55:54,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:55:54,954 INFO L130 PetriNetUnfolder]: 550/933 cut-off events. [2022-11-23 02:55:54,954 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-23 02:55:54,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 933 events. 550/933 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3937 event pairs, 231 based on Foata normal form. 0/735 useless extension candidates. Maximal degree in co-relation 1914. Up to 517 conditions per place. [2022-11-23 02:55:54,961 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 50 selfloop transitions, 6 changer transitions 0/60 dead transitions. [2022-11-23 02:55:54,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 60 transitions, 256 flow [2022-11-23 02:55:54,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:55:54,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 02:55:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 600 transitions. [2022-11-23 02:55:54,965 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49504950495049505 [2022-11-23 02:55:54,965 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 600 transitions. [2022-11-23 02:55:54,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 600 transitions. [2022-11-23 02:55:54,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:55:54,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 600 transitions. [2022-11-23 02:55:54,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 303.0) internal successors, (1515), 5 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,971 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 303.0) internal successors, (1515), 5 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,972 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 80 flow. Second operand 4 states and 600 transitions. [2022-11-23 02:55:54,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 60 transitions, 256 flow [2022-11-23 02:55:54,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 60 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:55:54,976 INFO L231 Difference]: Finished difference. Result has 37 places, 34 transitions, 109 flow [2022-11-23 02:55:54,977 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2022-11-23 02:55:54,979 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2022-11-23 02:55:54,979 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 109 flow [2022-11-23 02:55:54,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:54,981 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:54,981 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:55:54,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:55:55,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:55:55,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:55:55,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:55:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash 779624625, now seen corresponding path program 1 times [2022-11-23 02:55:55,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:55:55,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971737448] [2022-11-23 02:55:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:55,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:55:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:55:55,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:55:55,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:55:55,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971737448] [2022-11-23 02:55:55,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971737448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:55:55,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:55:55,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:55:55,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826061885] [2022-11-23 02:55:55,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:55:55,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:55:55,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:55:55,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:55:55,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:55:55,309 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 303 [2022-11-23 02:55:55,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:55,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:55:55,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 303 [2022-11-23 02:55:55,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:55:55,581 INFO L130 PetriNetUnfolder]: 733/1202 cut-off events. [2022-11-23 02:55:55,582 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2022-11-23 02:55:55,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2919 conditions, 1202 events. 733/1202 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4689 event pairs, 287 based on Foata normal form. 58/1000 useless extension candidates. Maximal degree in co-relation 2912. Up to 661 conditions per place. [2022-11-23 02:55:55,590 INFO L137 encePairwiseOnDemand]: 298/303 looper letters, 48 selfloop transitions, 3 changer transitions 3/56 dead transitions. [2022-11-23 02:55:55,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 56 transitions, 291 flow [2022-11-23 02:55:55,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:55:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:55:55,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2022-11-23 02:55:55,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5214521452145214 [2022-11-23 02:55:55,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2022-11-23 02:55:55,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2022-11-23 02:55:55,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:55:55,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2022-11-23 02:55:55,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:55,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:55,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:55,600 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 109 flow. Second operand 3 states and 474 transitions. [2022-11-23 02:55:55,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 56 transitions, 291 flow [2022-11-23 02:55:55,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 56 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:55:55,604 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 123 flow [2022-11-23 02:55:55,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2022-11-23 02:55:55,606 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2022-11-23 02:55:55,606 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 123 flow [2022-11-23 02:55:55,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:55,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:55,607 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:55:55,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:55:55,608 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:55:55,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:55:55,608 INFO L85 PathProgramCache]: Analyzing trace with hash -990085846, now seen corresponding path program 1 times [2022-11-23 02:55:55,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:55:55,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008485095] [2022-11-23 02:55:55,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:55,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:55:55,627 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:55:55,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278583404] [2022-11-23 02:55:55,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:55,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:55:55,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:55:55,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:55:55,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 02:55:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:55:55,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 02:55:55,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:55:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:55:55,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:55:55,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:55:55,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008485095] [2022-11-23 02:55:55,881 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:55:55,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278583404] [2022-11-23 02:55:55,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278583404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:55:55,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:55:55,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:55:55,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732796492] [2022-11-23 02:55:55,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:55:55,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:55:55,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:55:55,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:55:55,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:55:55,938 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 303 [2022-11-23 02:55:55,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:55,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:55:55,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 303 [2022-11-23 02:55:55,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:55:56,133 INFO L130 PetriNetUnfolder]: 521/924 cut-off events. [2022-11-23 02:55:56,134 INFO L131 PetriNetUnfolder]: For 416/416 co-relation queries the response was YES. [2022-11-23 02:55:56,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2209 conditions, 924 events. 521/924 cut-off events. For 416/416 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3763 event pairs, 387 based on Foata normal form. 28/758 useless extension candidates. Maximal degree in co-relation 2201. Up to 830 conditions per place. [2022-11-23 02:55:56,142 INFO L137 encePairwiseOnDemand]: 301/303 looper letters, 26 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2022-11-23 02:55:56,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 163 flow [2022-11-23 02:55:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:55:56,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:55:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2022-11-23 02:55:56,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49064906490649063 [2022-11-23 02:55:56,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2022-11-23 02:55:56,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2022-11-23 02:55:56,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:55:56,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2022-11-23 02:55:56,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,151 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 123 flow. Second operand 3 states and 446 transitions. [2022-11-23 02:55:56,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 163 flow [2022-11-23 02:55:56,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 02:55:56,157 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 102 flow [2022-11-23 02:55:56,158 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2022-11-23 02:55:56,161 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2022-11-23 02:55:56,162 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 102 flow [2022-11-23 02:55:56,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:56,163 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:55:56,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:55:56,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:55:56,370 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:55:56,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:55:56,370 INFO L85 PathProgramCache]: Analyzing trace with hash -578721580, now seen corresponding path program 1 times [2022-11-23 02:55:56,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:55:56,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925779938] [2022-11-23 02:55:56,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:56,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:55:56,390 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:55:56,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114632346] [2022-11-23 02:55:56,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:56,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:55:56,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:55:56,392 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:55:56,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 02:55:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:55:56,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 02:55:56,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:55:56,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 02:55:56,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:55:56,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:55:56,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:55:56,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925779938] [2022-11-23 02:55:56,607 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:55:56,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114632346] [2022-11-23 02:55:56,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114632346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:55:56,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:55:56,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:55:56,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240538983] [2022-11-23 02:55:56,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:55:56,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:55:56,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:55:56,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:55:56,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:55:56,655 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 303 [2022-11-23 02:55:56,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:55:56,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 303 [2022-11-23 02:55:56,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:55:56,837 INFO L130 PetriNetUnfolder]: 278/529 cut-off events. [2022-11-23 02:55:56,837 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-23 02:55:56,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1199 conditions, 529 events. 278/529 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2076 event pairs, 58 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 1192. Up to 328 conditions per place. [2022-11-23 02:55:56,840 INFO L137 encePairwiseOnDemand]: 297/303 looper letters, 28 selfloop transitions, 7 changer transitions 1/41 dead transitions. [2022-11-23 02:55:56,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 195 flow [2022-11-23 02:55:56,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:55:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:55:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2022-11-23 02:55:56,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5038503850385039 [2022-11-23 02:55:56,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 458 transitions. [2022-11-23 02:55:56,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 458 transitions. [2022-11-23 02:55:56,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:55:56,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 458 transitions. [2022-11-23 02:55:56,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,849 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 102 flow. Second operand 3 states and 458 transitions. [2022-11-23 02:55:56,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 195 flow [2022-11-23 02:55:56,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 41 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:55:56,851 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 115 flow [2022-11-23 02:55:56,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2022-11-23 02:55:56,852 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2022-11-23 02:55:56,852 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 115 flow [2022-11-23 02:55:56,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:56,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:56,853 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:55:56,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 02:55:57,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:55:57,060 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:55:57,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:55:57,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1334125161, now seen corresponding path program 1 times [2022-11-23 02:55:57,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:55:57,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343013571] [2022-11-23 02:55:57,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:57,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:55:57,097 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:55:57,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344005336] [2022-11-23 02:55:57,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:57,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:55:57,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:55:57,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:55:57,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 02:55:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:55:57,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 02:55:57,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:55:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:55:57,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:55:57,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:55:57,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343013571] [2022-11-23 02:55:57,593 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:55:57,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344005336] [2022-11-23 02:55:57,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344005336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:55:57,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:55:57,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:55:57,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602809956] [2022-11-23 02:55:57,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:55:57,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:55:57,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:55:57,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:55:57,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:55:57,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 303 [2022-11-23 02:55:57,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:57,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:55:57,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 303 [2022-11-23 02:55:57,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:55:57,882 INFO L130 PetriNetUnfolder]: 373/708 cut-off events. [2022-11-23 02:55:57,882 INFO L131 PetriNetUnfolder]: For 150/150 co-relation queries the response was YES. [2022-11-23 02:55:57,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1797 conditions, 708 events. 373/708 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2706 event pairs, 103 based on Foata normal form. 6/654 useless extension candidates. Maximal degree in co-relation 1790. Up to 322 conditions per place. [2022-11-23 02:55:57,887 INFO L137 encePairwiseOnDemand]: 299/303 looper letters, 52 selfloop transitions, 4 changer transitions 6/67 dead transitions. [2022-11-23 02:55:57,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 67 transitions, 361 flow [2022-11-23 02:55:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:55:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-23 02:55:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 601 transitions. [2022-11-23 02:55:57,891 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49587458745874585 [2022-11-23 02:55:57,891 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 601 transitions. [2022-11-23 02:55:57,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 601 transitions. [2022-11-23 02:55:57,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:55:57,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 601 transitions. [2022-11-23 02:55:57,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 150.25) internal successors, (601), 4 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:57,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 303.0) internal successors, (1515), 5 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:57,898 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 303.0) internal successors, (1515), 5 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:57,898 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 115 flow. Second operand 4 states and 601 transitions. [2022-11-23 02:55:57,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 67 transitions, 361 flow [2022-11-23 02:55:57,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 67 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 02:55:57,903 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 133 flow [2022-11-23 02:55:57,904 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2022-11-23 02:55:57,905 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2022-11-23 02:55:57,905 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 133 flow [2022-11-23 02:55:57,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:57,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:57,906 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:55:57,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 02:55:58,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 02:55:58,114 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:55:58,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:55:58,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1261373000, now seen corresponding path program 1 times [2022-11-23 02:55:58,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:55:58,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662375567] [2022-11-23 02:55:58,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:58,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:55:58,149 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:55:58,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [632920285] [2022-11-23 02:55:58,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:55:58,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:55:58,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:55:58,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:55:58,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 02:55:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:55:58,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-23 02:55:58,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:55:58,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 02:55:58,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-11-23 02:55:58,550 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-23 02:55:58,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-11-23 02:55:58,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 02:55:58,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-23 02:55:58,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-11-23 02:55:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:55:59,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:55:59,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:55:59,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662375567] [2022-11-23 02:55:59,048 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:55:59,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632920285] [2022-11-23 02:55:59,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632920285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:55:59,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:55:59,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:55:59,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017756441] [2022-11-23 02:55:59,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:55:59,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:55:59,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:55:59,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:55:59,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:55:59,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 303 [2022-11-23 02:55:59,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 133 flow. Second operand has 7 states, 7 states have (on average 131.14285714285714) internal successors, (918), 7 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:59,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:55:59,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 303 [2022-11-23 02:55:59,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:55:59,870 INFO L130 PetriNetUnfolder]: 563/1072 cut-off events. [2022-11-23 02:55:59,871 INFO L131 PetriNetUnfolder]: For 206/206 co-relation queries the response was YES. [2022-11-23 02:55:59,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 1072 events. 563/1072 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4851 event pairs, 198 based on Foata normal form. 12/990 useless extension candidates. Maximal degree in co-relation 2623. Up to 530 conditions per place. [2022-11-23 02:55:59,878 INFO L137 encePairwiseOnDemand]: 295/303 looper letters, 50 selfloop transitions, 7 changer transitions 9/71 dead transitions. [2022-11-23 02:55:59,878 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 71 transitions, 384 flow [2022-11-23 02:55:59,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:55:59,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 02:55:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 708 transitions. [2022-11-23 02:55:59,881 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46732673267326735 [2022-11-23 02:55:59,882 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 708 transitions. [2022-11-23 02:55:59,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 708 transitions. [2022-11-23 02:55:59,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:55:59,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 708 transitions. [2022-11-23 02:55:59,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:59,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:59,889 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:59,889 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 133 flow. Second operand 5 states and 708 transitions. [2022-11-23 02:55:59,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 71 transitions, 384 flow [2022-11-23 02:55:59,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 71 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:55:59,892 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 188 flow [2022-11-23 02:55:59,893 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2022-11-23 02:55:59,894 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2022-11-23 02:55:59,894 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 188 flow [2022-11-23 02:55:59,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 131.14285714285714) internal successors, (918), 7 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:55:59,895 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:55:59,895 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:55:59,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 02:56:00,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-23 02:56:00,103 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:56:00,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:56:00,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1620115972, now seen corresponding path program 1 times [2022-11-23 02:56:00,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:56:00,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770546383] [2022-11-23 02:56:00,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:56:00,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:56:00,127 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:56:00,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193268053] [2022-11-23 02:56:00,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:56:00,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:56:00,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:56:00,129 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:56:00,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 02:56:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:56:00,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:56:00,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:56:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:56:00,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:56:00,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:56:00,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770546383] [2022-11-23 02:56:00,363 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:56:00,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193268053] [2022-11-23 02:56:00,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193268053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:56:00,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:56:00,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:56:00,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568275988] [2022-11-23 02:56:00,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:56:00,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:56:00,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:56:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:56:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:56:00,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 303 [2022-11-23 02:56:00,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:00,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:56:00,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 303 [2022-11-23 02:56:00,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:56:00,558 INFO L130 PetriNetUnfolder]: 465/872 cut-off events. [2022-11-23 02:56:00,559 INFO L131 PetriNetUnfolder]: For 403/403 co-relation queries the response was YES. [2022-11-23 02:56:00,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 872 events. 465/872 cut-off events. For 403/403 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3186 event pairs, 159 based on Foata normal form. 28/804 useless extension candidates. Maximal degree in co-relation 2257. Up to 580 conditions per place. [2022-11-23 02:56:00,563 INFO L137 encePairwiseOnDemand]: 299/303 looper letters, 36 selfloop transitions, 2 changer transitions 9/49 dead transitions. [2022-11-23 02:56:00,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 300 flow [2022-11-23 02:56:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:56:00,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:56:00,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2022-11-23 02:56:00,565 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5071507150715071 [2022-11-23 02:56:00,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 461 transitions. [2022-11-23 02:56:00,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 461 transitions. [2022-11-23 02:56:00,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:56:00,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 461 transitions. [2022-11-23 02:56:00,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:00,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:00,570 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:00,570 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 188 flow. Second operand 3 states and 461 transitions. [2022-11-23 02:56:00,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 300 flow [2022-11-23 02:56:00,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 291 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-11-23 02:56:00,573 INFO L231 Difference]: Finished difference. Result has 48 places, 34 transitions, 164 flow [2022-11-23 02:56:00,573 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2022-11-23 02:56:00,574 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 15 predicate places. [2022-11-23 02:56:00,574 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 164 flow [2022-11-23 02:56:00,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:00,575 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:56:00,575 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:56:00,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 02:56:00,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:56:00,781 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:56:00,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:56:00,782 INFO L85 PathProgramCache]: Analyzing trace with hash 804510534, now seen corresponding path program 1 times [2022-11-23 02:56:00,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:56:00,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055163225] [2022-11-23 02:56:00,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:56:00,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:56:00,813 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:56:00,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740143681] [2022-11-23 02:56:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:56:00,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:56:00,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:56:00,816 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:56:00,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 02:56:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:56:01,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-23 02:56:01,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:56:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:56:01,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:56:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:56:05,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:56:05,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055163225] [2022-11-23 02:56:05,156 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:56:05,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740143681] [2022-11-23 02:56:05,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740143681] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:56:05,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 02:56:05,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-11-23 02:56:05,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196615029] [2022-11-23 02:56:05,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 02:56:05,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 02:56:05,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:56:05,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 02:56:05,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-23 02:56:10,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 303 [2022-11-23 02:56:10,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 34 transitions, 164 flow. Second operand has 12 states, 12 states have (on average 134.91666666666666) internal successors, (1619), 12 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:10,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:56:10,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 303 [2022-11-23 02:56:10,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:56:14,456 INFO L130 PetriNetUnfolder]: 309/646 cut-off events. [2022-11-23 02:56:14,456 INFO L131 PetriNetUnfolder]: For 341/341 co-relation queries the response was YES. [2022-11-23 02:56:14,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1739 conditions, 646 events. 309/646 cut-off events. For 341/341 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1828 event pairs, 63 based on Foata normal form. 12/600 useless extension candidates. Maximal degree in co-relation 1726. Up to 131 conditions per place. [2022-11-23 02:56:14,466 INFO L137 encePairwiseOnDemand]: 298/303 looper letters, 82 selfloop transitions, 10 changer transitions 15/111 dead transitions. [2022-11-23 02:56:14,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 111 transitions, 651 flow [2022-11-23 02:56:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 02:56:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 02:56:14,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1415 transitions. [2022-11-23 02:56:14,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.466996699669967 [2022-11-23 02:56:14,477 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1415 transitions. [2022-11-23 02:56:14,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1415 transitions. [2022-11-23 02:56:14,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:56:14,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1415 transitions. [2022-11-23 02:56:14,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 141.5) internal successors, (1415), 10 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:14,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 303.0) internal successors, (3333), 11 states have internal predecessors, (3333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:14,547 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 303.0) internal successors, (3333), 11 states have internal predecessors, (3333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:14,547 INFO L175 Difference]: Start difference. First operand has 48 places, 34 transitions, 164 flow. Second operand 10 states and 1415 transitions. [2022-11-23 02:56:14,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 111 transitions, 651 flow [2022-11-23 02:56:14,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 111 transitions, 647 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:56:14,553 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 221 flow [2022-11-23 02:56:14,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=221, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2022-11-23 02:56:14,555 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 23 predicate places. [2022-11-23 02:56:14,555 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 221 flow [2022-11-23 02:56:14,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 134.91666666666666) internal successors, (1619), 12 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:14,557 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:56:14,557 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:56:14,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 02:56:14,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:56:14,766 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:56:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:56:14,767 INFO L85 PathProgramCache]: Analyzing trace with hash -829998875, now seen corresponding path program 1 times [2022-11-23 02:56:14,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:56:14,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734467166] [2022-11-23 02:56:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:56:14,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:56:14,799 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:56:14,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952410375] [2022-11-23 02:56:14,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:56:14,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:56:14,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:56:14,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:56:14,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 02:56:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:56:15,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-23 02:56:15,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:56:15,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 02:56:16,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-23 02:56:16,138 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:56:16,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:56:16,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2022-11-23 02:56:16,492 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 02:56:16,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 76 [2022-11-23 02:56:16,631 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 02:56:16,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 170 treesize of output 135 [2022-11-23 02:56:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:56:26,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:56:26,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734467166] [2022-11-23 02:56:26,211 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 02:56:26,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952410375] [2022-11-23 02:56:26,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952410375] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:56:26,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 02:56:26,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2022-11-23 02:56:26,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093231945] [2022-11-23 02:56:26,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 02:56:26,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 02:56:26,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:56:26,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 02:56:26,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2022-11-23 02:56:50,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 303 [2022-11-23 02:56:50,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 221 flow. Second operand has 24 states, 24 states have (on average 111.33333333333333) internal successors, (2672), 24 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:56:50,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:56:50,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 303 [2022-11-23 02:56:50,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:57:14,151 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 98 DAG size of output: 78 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:57:25,581 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 55 DAG size of output: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:57:36,902 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 92 DAG size of output: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:57:49,590 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 65 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 02:58:09,860 INFO L130 PetriNetUnfolder]: 774/1525 cut-off events. [2022-11-23 02:58:09,860 INFO L131 PetriNetUnfolder]: For 919/919 co-relation queries the response was YES. [2022-11-23 02:58:09,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4268 conditions, 1525 events. 774/1525 cut-off events. For 919/919 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5646 event pairs, 116 based on Foata normal form. 35/1442 useless extension candidates. Maximal degree in co-relation 4253. Up to 249 conditions per place. [2022-11-23 02:58:09,871 INFO L137 encePairwiseOnDemand]: 287/303 looper letters, 147 selfloop transitions, 79 changer transitions 70/298 dead transitions. [2022-11-23 02:58:09,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 298 transitions, 1740 flow [2022-11-23 02:58:09,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-23 02:58:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-11-23 02:58:09,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 5635 transitions. [2022-11-23 02:58:09,891 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3795379537953795 [2022-11-23 02:58:09,891 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 5635 transitions. [2022-11-23 02:58:09,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 5635 transitions. [2022-11-23 02:58:09,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:58:09,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 5635 transitions. [2022-11-23 02:58:09,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 115.0) internal successors, (5635), 49 states have internal predecessors, (5635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:58:09,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 303.0) internal successors, (15150), 50 states have internal predecessors, (15150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:58:09,942 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 303.0) internal successors, (15150), 50 states have internal predecessors, (15150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:58:09,943 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 221 flow. Second operand 49 states and 5635 transitions. [2022-11-23 02:58:09,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 298 transitions, 1740 flow [2022-11-23 02:58:09,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 298 transitions, 1704 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-11-23 02:58:09,954 INFO L231 Difference]: Finished difference. Result has 115 places, 104 transitions, 819 flow [2022-11-23 02:58:09,954 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=819, PETRI_PLACES=115, PETRI_TRANSITIONS=104} [2022-11-23 02:58:09,955 INFO L288 CegarLoopForPetriNet]: 33 programPoint places, 82 predicate places. [2022-11-23 02:58:09,955 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 104 transitions, 819 flow [2022-11-23 02:58:09,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 111.33333333333333) internal successors, (2672), 24 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:58:09,957 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:58:09,957 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:58:09,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 02:58:10,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-23 02:58:10,167 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 02:58:10,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:58:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash 771201408, now seen corresponding path program 2 times [2022-11-23 02:58:10,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:58:10,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511512451] [2022-11-23 02:58:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:58:10,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:58:10,229 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 02:58:10,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827995714] [2022-11-23 02:58:10,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 02:58:10,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:58:10,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:58:10,238 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:58:10,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a795e93-d3a0-4374-aa7c-e403a0c91cbd/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 02:58:11,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 02:58:11,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 02:58:11,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 92 conjunts are in the unsatisfiable core [2022-11-23 02:58:11,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:58:11,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 02:58:11,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-11-23 02:58:11,298 INFO L321 Elim1Store]: treesize reduction 21, result has 48.8 percent of original size [2022-11-23 02:58:11,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 45 [2022-11-23 02:58:11,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-23 02:58:11,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-23 02:58:12,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 67 [2022-11-23 02:58:16,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 70 [2022-11-23 02:58:25,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2022-11-23 02:58:33,412 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:58:33,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:59:01,345 WARN L233 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 70 DAG size of output: 54 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:01:59,589 WARN L233 SmtUtils]: Spent 1.57m on a formula simplification. DAG size of input: 127 DAG size of output: 104 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:03:12,181 WARN L233 SmtUtils]: Spent 20.20s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:04:00,103 WARN L233 SmtUtils]: Spent 24.71s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:04:59,925 WARN L233 SmtUtils]: Spent 29.08s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:06:08,537 WARN L233 SmtUtils]: Spent 25.84s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:07:30,731 WARN L233 SmtUtils]: Spent 26.26s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:09:53,833 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_~#buffer~0.base|))) (or (let ((.cse1 (mod c_~first~0 4294967296))) (let ((.cse2 (<= .cse1 2147483647))) (and (or (not (= (select .cse0 (+ |c_~#buffer~0.offset| .cse1 (- 4294967296))) |c_t1Thread1of1ForFork0_~i~0#1|)) .cse2) (or (not (= (select .cse0 (+ |c_~#buffer~0.offset| .cse1)) |c_t1Thread1of1ForFork0_~i~0#1|)) (not .cse2))))) (let ((.cse98 (mod (+ 2 c_~first~0) 4294967296))) (let ((.cse13 (mod c_~buffer_size~0 4294967296)) (.cse21 (<= .cse98 2147483647)) (.cse68 (mod (+ c_~first~0 1) 4294967296))) (let ((.cse3 (<= .cse68 2147483647)) (.cse4 (not .cse21)) (.cse15 (+ |c_~#buffer~0.offset| .cse98)) (.cse67 (< (mod (+ 3 c_~first~0) 4294967296) .cse13)) (.cse9 (+ |c_t1Thread1of1ForFork0_~i~0#1| 1)) (.cse5 (+ .cse13 1)) (.cse28 (+ |c_~#buffer~0.offset| (- 4294967296) .cse98)) (.cse16 (+ 2 |c_t1Thread1of1ForFork0_~i~0#1|))) (and (or (not .cse3) (let ((.cse11 (+ |c_~#buffer~0.offset| .cse68))) (and (or .cse4 (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (v_ArrVal_802 Int) (v_ArrVal_801 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int)) (let ((.cse19 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse20 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse17 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296)) (.cse18 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296))) (let ((.cse8 (+ .cse20 .cse17 .cse18 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse10 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ 4294967295 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) 4294967296)) v_ArrVal_801)) (.cse12 (+ .cse19 .cse20 .cse17 .cse18 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse6 (+ .cse19 .cse20 .cse17 .cse18 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse14 (+ .cse18 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse7 (+ .cse17 .cse18 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85))) (or (<= .cse5 .cse6) (< .cse7 0) (< .cse8 0) (not (= .cse9 (select .cse10 .cse11))) (<= .cse12 1) (<= (mod (mod .cse7 .cse13) 4294967296) 0) (<= 4294967296 .cse14) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 .cse13) 1) 4294967296) .cse13) 1) 4294967296) .cse13) 4294967296)) (<= 4294967296 .cse8) (not (= (select (store .cse10 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) .cse13) 4294967296)) v_ArrVal_802) .cse15) .cse16)) (<= 4294967297 .cse12) (< .cse6 1) (< .cse14 0) (<= 4294967296 .cse7)))))) (or .cse21 (and (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int)) (let ((.cse31 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse32 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse29 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296)) (.cse30 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296))) (let ((.cse24 (+ .cse32 .cse29 .cse30 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse25 (+ .cse31 .cse32 .cse29 .cse30 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse22 (+ .cse31 .cse32 .cse29 .cse30 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse26 (+ .cse30 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse23 (+ .cse29 .cse30 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85))) (or (<= .cse5 .cse22) (< .cse23 0) (< .cse24 0) (<= .cse25 1) (<= (mod (mod .cse23 .cse13) 4294967296) 0) (<= 4294967296 .cse26) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 .cse13) 1) 4294967296) .cse13) 1) 4294967296) .cse13) 4294967296)) (<= 4294967296 .cse24) (<= 4294967297 .cse25) (forall ((v_ArrVal_802 Int) (v_ArrVal_801 Int)) (let ((.cse27 (store .cse0 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (+ 4294967295 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) 4294967296)) v_ArrVal_801))) (or (not (= (select (store .cse27 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) .cse13) 4294967296)) v_ArrVal_802) .cse28) .cse16)) (not (= .cse9 (select .cse27 .cse11)))))) (< .cse22 1) (< .cse26 0) (<= 4294967296 .cse23))))) (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int)) (let ((.cse41 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse42 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse39 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296)) (.cse40 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296))) (let ((.cse35 (+ .cse42 .cse39 .cse40 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse36 (+ .cse41 .cse42 .cse39 .cse40 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse33 (+ .cse41 .cse42 .cse39 .cse40 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse37 (+ .cse40 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse34 (+ .cse39 .cse40 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85))) (or (<= .cse5 .cse33) (< .cse34 0) (< .cse35 0) (<= .cse36 1) (<= (mod (mod .cse34 .cse13) 4294967296) 0) (<= 4294967296 .cse37) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) (forall ((v_ArrVal_802 Int) (v_ArrVal_801 Int)) (let ((.cse38 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ 4294967295 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) 4294967296)) v_ArrVal_801))) (or (not (= .cse16 (select (store .cse38 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) .cse13) 4294967296)) v_ArrVal_802) .cse28))) (not (= .cse9 (select .cse38 .cse11)))))) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 .cse13) 1) 4294967296) .cse13) 1) 4294967296) .cse13) 4294967296)) (<= 4294967296 .cse35) (<= 4294967297 .cse36) (< .cse33 1) (< .cse37 0) (<= 4294967296 .cse34))))))) (or (and (or .cse21 (and (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int)) (let ((.cse50 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse48 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse49 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296))) (let ((.cse44 (+ .cse50 .cse48 .cse49 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse45 (+ .cse50 .cse48 .cse49 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74)) (.cse46 (+ .cse49 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74)) (.cse43 (+ .cse48 .cse49 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74))) (or (< .cse43 0) (<= 4294967297 .cse44) (<= .cse5 .cse45) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296) (<= .cse44 1) (< .cse45 1) (<= (mod (mod (mod (+ (mod .cse43 .cse13) 1) 4294967296) .cse13) 4294967296) 0) (<= 4294967296 .cse46) (< .cse46 0) (<= (mod (mod .cse46 .cse13) 4294967296) 0) (forall ((v_ArrVal_802 Int) (v_ArrVal_801 Int)) (let ((.cse47 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967295) 4294967296)) v_ArrVal_801))) (or (not (= .cse9 (select .cse47 .cse11))) (not (= .cse16 (select (store .cse47 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296) .cse13) 4294967296) (- 4294967296)) v_ArrVal_802) .cse28)))))) (<= 4294967296 .cse43))))) (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int)) (let ((.cse58 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse56 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse57 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296))) (let ((.cse52 (+ .cse58 .cse56 .cse57 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse53 (+ .cse58 .cse56 .cse57 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74)) (.cse54 (+ .cse57 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74)) (.cse51 (+ .cse56 .cse57 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74))) (or (< .cse51 0) (<= 4294967297 .cse52) (<= .cse5 .cse53) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296) (<= .cse52 1) (< .cse53 1) (<= (mod (mod (mod (+ (mod .cse51 .cse13) 1) 4294967296) .cse13) 4294967296) 0) (<= 4294967296 .cse54) (< .cse54 0) (<= (mod (mod .cse54 .cse13) 4294967296) 0) (forall ((v_ArrVal_802 Int) (v_ArrVal_801 Int)) (let ((.cse55 (store .cse0 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967295) 4294967296)) v_ArrVal_801))) (or (not (= .cse16 (select (store .cse55 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296) .cse13) 4294967296) (- 4294967296)) v_ArrVal_802) .cse28))) (not (= .cse9 (select .cse55 .cse11)))))) (<= 4294967296 .cse51))))))) (or (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (v_ArrVal_802 Int) (v_ArrVal_801 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int)) (let ((.cse66 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse64 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse65 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296))) (let ((.cse60 (+ .cse66 .cse64 .cse65 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse61 (+ .cse66 .cse64 .cse65 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74)) (.cse62 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967295) 4294967296)) v_ArrVal_801)) (.cse63 (+ .cse65 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74)) (.cse59 (+ .cse64 .cse65 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74))) (or (< .cse59 0) (<= 4294967297 .cse60) (<= .cse5 .cse61) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74) (not (= .cse9 (select .cse62 .cse11))) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296) (<= .cse60 1) (< .cse61 1) (not (= (select (store .cse62 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296) .cse13) 4294967296)) v_ArrVal_802) .cse15) .cse16)) (<= (mod (mod (mod (+ (mod .cse59 .cse13) 1) 4294967296) .cse13) 4294967296) 0) (<= 4294967296 .cse63) (< .cse63 0) (<= (mod (mod .cse63 .cse13) 4294967296) 0) (<= 4294967296 .cse59))))) .cse4)) .cse67)))) (or .cse3 (let ((.cse75 (+ |c_~#buffer~0.offset| .cse68 (- 4294967296)))) (and (or .cse4 (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (v_ArrVal_802 Int) (v_ArrVal_801 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int)) (let ((.cse78 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse79 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse76 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296)) (.cse77 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296))) (let ((.cse71 (+ .cse79 .cse76 .cse77 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse74 (store .cse0 (+ |c_~#buffer~0.offset| (mod (+ 4294967295 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) 4294967296)) v_ArrVal_801)) (.cse72 (+ .cse78 .cse79 .cse76 .cse77 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse69 (+ .cse78 .cse79 .cse76 .cse77 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse73 (+ .cse77 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse70 (+ .cse76 .cse77 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85))) (or (<= .cse5 .cse69) (< .cse70 0) (< .cse71 0) (<= .cse72 1) (<= (mod (mod .cse70 .cse13) 4294967296) 0) (<= 4294967296 .cse73) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 .cse13) 1) 4294967296) .cse13) 1) 4294967296) .cse13) 4294967296)) (<= 4294967296 .cse71) (not (= (select (store .cse74 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) .cse13) 4294967296)) v_ArrVal_802) .cse15) .cse16)) (not (= .cse9 (select .cse74 .cse75))) (<= 4294967297 .cse72) (< .cse69 1) (< .cse73 0) (<= 4294967296 .cse70)))))) (or .cse21 (and (or .cse67 (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (v_ArrVal_802 Int) (v_ArrVal_801 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int)) (let ((.cse87 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse85 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse86 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296))) (let ((.cse81 (+ .cse87 .cse85 .cse86 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse82 (+ .cse87 .cse85 .cse86 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74)) (.cse83 (store .cse0 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (+ aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967295) 4294967296)) v_ArrVal_801)) (.cse84 (+ .cse86 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74)) (.cse80 (+ .cse85 .cse86 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74))) (or (< .cse80 0) (<= 4294967297 .cse81) (<= .cse5 .cse82) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296) (<= .cse81 1) (< .cse82 1) (not (= .cse16 (select (store .cse83 (+ |c_~#buffer~0.offset| (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296) .cse13) 4294967296) (- 4294967296)) v_ArrVal_802) .cse28))) (<= (mod (mod (mod (+ (mod .cse80 .cse13) 1) 4294967296) .cse13) 4294967296) 0) (not (= .cse9 (select .cse83 .cse75))) (<= 4294967296 .cse84) (< .cse84 0) (<= (mod (mod .cse84 .cse13) 4294967296) 0) (<= 4294967296 .cse80)))))) (forall ((aux_div_aux_mod_v_~next~0_300_30_41 Int) (aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int) (aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58 Int) (aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 Int) (v_ArrVal_802 Int) (v_ArrVal_801 Int) (aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 Int)) (let ((.cse96 (* 4294967296 aux_div_aux_mod_aux_mod_v_~next~0_300_30_41_58)) (.cse97 (* aux_div_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63 4294967296)) (.cse94 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74 4294967296)) (.cse95 (* aux_div_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296))) (let ((.cse88 (store .cse0 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (+ 4294967295 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) 4294967296)) v_ArrVal_801)) (.cse91 (+ .cse97 .cse94 .cse95 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse92 (+ .cse96 .cse97 .cse94 .cse95 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 (* aux_div_aux_mod_v_~next~0_300_30_41 4294967296))) (.cse89 (+ .cse96 .cse97 .cse94 .cse95 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse93 (+ .cse95 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85)) (.cse90 (+ .cse94 .cse95 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85))) (or (not (= .cse9 (select .cse88 .cse75))) (<= .cse5 .cse89) (< .cse90 0) (< .cse91 0) (<= .cse92 1) (<= (mod (mod .cse90 .cse13) 4294967296) 0) (not (= (select (store .cse88 (+ |c_~#buffer~0.offset| (- 4294967296) (mod (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) .cse13) 4294967296)) v_ArrVal_802) .cse28) .cse16)) (<= 4294967296 .cse93) (>= aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 4294967296) (> 0 aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85) (< 0 (mod (mod (mod (+ (mod (mod (+ (mod aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_aux_mod_v_~next~0_300_30_41_58_63_74_85 .cse13) 1) 4294967296) .cse13) 1) 4294967296) .cse13) 4294967296)) (<= 4294967296 .cse91) (<= 4294967297 .cse92) (< .cse89 1) (< .cse93 0) (<= 4294967296 .cse90)))))))))))))))) is different from true