./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e02ca79ae11b312cb156178ccd52c5da7b51884a938996d16b5a625457869bce --- 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-2329fc7 [2022-12-13 12:54:03,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:54:03,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:54:03,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:54:03,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:54:03,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:54:03,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:54:03,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:54:03,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:54:03,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:54:03,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:54:03,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:54:03,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:54:03,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:54:03,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:54:03,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:54:03,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:54:03,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:54:03,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:54:03,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:54:03,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:54:03,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:54:03,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:54:03,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:54:03,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:54:03,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:54:03,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:54:03,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:54:03,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:54:03,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:54:03,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:54:03,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:54:03,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:54:03,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:54:03,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:54:03,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:54:03,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:54:03,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:54:03,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:54:03,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:54:03,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:54:03,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 12:54:03,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:54:03,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:54:03,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:54:03,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:54:03,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:54:03,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:54:03,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:54:03,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:54:03,475 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:54:03,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:54:03,475 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:54:03,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:54:03,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:54:03,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:54:03,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:54:03,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:54:03,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:54:03,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:54:03,477 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:54:03,477 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:54:03,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:54:03,477 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:54:03,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:54:03,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:54:03,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:54:03,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:54:03,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:54:03,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:54:03,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:54:03,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:54:03,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:54:03,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:54:03,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:54:03,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:54:03,480 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:54:03,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:54:03,480 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:54:03,480 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_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e02ca79ae11b312cb156178ccd52c5da7b51884a938996d16b5a625457869bce [2022-12-13 12:54:03,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:54:03,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:54:03,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:54:03,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:54:03,705 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:54:03,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 12:54:06,218 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:54:06,390 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:54:06,390 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 12:54:06,399 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/data/2704aebe6/a8178bc21f954a0fa7c5f2f5a9c8c94a/FLAGcf304e292 [2022-12-13 12:54:06,793 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/data/2704aebe6/a8178bc21f954a0fa7c5f2f5a9c8c94a [2022-12-13 12:54:06,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:54:06,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:54:06,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:54:06,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:54:06,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:54:06,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:54:06" (1/1) ... [2022-12-13 12:54:06,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c9c3cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:06, skipping insertion in model container [2022-12-13 12:54:06,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:54:06" (1/1) ... [2022-12-13 12:54:06,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:54:06,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:54:06,984 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_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 12:54:07,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,105 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,107 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:54:07,117 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:54:07,125 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_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/sv-benchmarks/c/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 12:54:07,145 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,147 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,148 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,149 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,152 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:54:07,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:54:07,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:54:07,185 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:54:07,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07 WrapperNode [2022-12-13 12:54:07,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:54:07,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:54:07,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:54:07,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:54:07,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,218 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-13 12:54:07,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:54:07,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:54:07,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:54:07,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:54:07,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,238 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:54:07,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:54:07,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:54:07,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:54:07,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (1/1) ... [2022-12-13 12:54:07,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:54:07,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:54:07,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:54:07,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:54:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:54:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:54:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:54:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:54:07,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:54:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:54:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:54:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:54:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:54:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 12:54:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 12:54:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:54:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:54:07,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:54:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:54:07,307 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:54:07,406 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:54:07,408 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:54:07,540 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:54:07,557 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:54:07,557 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:54:07,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:54:07 BoogieIcfgContainer [2022-12-13 12:54:07,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:54:07,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:54:07,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:54:07,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:54:07,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:54:06" (1/3) ... [2022-12-13 12:54:07,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660c5d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:54:07, skipping insertion in model container [2022-12-13 12:54:07,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:54:07" (2/3) ... [2022-12-13 12:54:07,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660c5d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:54:07, skipping insertion in model container [2022-12-13 12:54:07,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:54:07" (3/3) ... [2022-12-13 12:54:07,564 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 12:54:07,571 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 12:54:07,578 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:54:07,578 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 12:54:07,578 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:54:07,620 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:54:07,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2022-12-13 12:54:07,674 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2022-12-13 12:54:07,674 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:54:07,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2022-12-13 12:54:07,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2022-12-13 12:54:07,681 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2022-12-13 12:54:07,684 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:54:07,691 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2022-12-13 12:54:07,693 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2022-12-13 12:54:07,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2022-12-13 12:54:07,709 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2022-12-13 12:54:07,709 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:54:07,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2022-12-13 12:54:07,711 INFO L119 LiptonReduction]: Number of co-enabled transitions 2114 [2022-12-13 12:54:09,312 INFO L134 LiptonReduction]: Checked pairs total: 4992 [2022-12-13 12:54:09,312 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-12-13 12:54:09,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:54:09,327 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;@5bf55317, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:54:09,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 12:54:09,329 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 12:54:09,329 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:54:09,329 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:54:09,330 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:54:09,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:54:09,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:54:09,334 INFO L85 PathProgramCache]: Analyzing trace with hash 326857332, now seen corresponding path program 1 times [2022-12-13 12:54:09,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:54:09,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470413639] [2022-12-13 12:54:09,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:54:09,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:54:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:54:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:54:09,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:54:09,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470413639] [2022-12-13 12:54:09,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470413639] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:54:09,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:54:09,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:54:09,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934234646] [2022-12-13 12:54:09,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:54:09,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:54:09,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:54:09,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:54:09,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:54:09,517 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 172 [2022-12-13 12:54:09,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2022-12-13 12:54:09,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:54:09,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 172 [2022-12-13 12:54:09,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:54:09,633 INFO L130 PetriNetUnfolder]: 423/666 cut-off events. [2022-12-13 12:54:09,633 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 12:54:09,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1369 conditions, 666 events. 423/666 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3077 event pairs, 423 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 1358. Up to 656 conditions per place. [2022-12-13 12:54:09,638 INFO L137 encePairwiseOnDemand]: 168/172 looper letters, 16 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2022-12-13 12:54:09,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 19 transitions, 81 flow [2022-12-13 12:54:09,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:54:09,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:54:09,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2022-12-13 12:54:09,651 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49806201550387597 [2022-12-13 12:54:09,651 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2022-12-13 12:54:09,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2022-12-13 12:54:09,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:54:09,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2022-12-13 12:54:09,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2022-12-13 12:54:09,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-12-13 12:54:09,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-12-13 12:54:09,665 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 257 transitions. [2022-12-13 12:54:09,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 19 transitions, 81 flow [2022-12-13 12:54:09,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 12:54:09,669 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 46 flow [2022-12-13 12:54:09,671 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2022-12-13 12:54:09,673 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, -4 predicate places. [2022-12-13 12:54:09,673 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 46 flow [2022-12-13 12:54:09,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2022-12-13 12:54:09,674 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:54:09,674 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:54:09,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:54:09,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:54:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:54:09,675 INFO L85 PathProgramCache]: Analyzing trace with hash 326857333, now seen corresponding path program 1 times [2022-12-13 12:54:09,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:54:09,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534473503] [2022-12-13 12:54:09,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:54:09,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:54:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:54:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:54:09,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:54:09,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534473503] [2022-12-13 12:54:09,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534473503] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:54:09,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:54:09,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:54:09,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735103994] [2022-12-13 12:54:09,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:54:09,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:54:09,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:54:09,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:54:09,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:54:09,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 172 [2022-12-13 12:54:09,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2022-12-13 12:54:09,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:54:09,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 172 [2022-12-13 12:54:09,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:54:09,799 INFO L130 PetriNetUnfolder]: 249/419 cut-off events. [2022-12-13 12:54:09,799 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:54:09,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 866 conditions, 419 events. 249/419 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1679 event pairs, 60 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 860. Up to 338 conditions per place. [2022-12-13 12:54:09,801 INFO L137 encePairwiseOnDemand]: 165/172 looper letters, 25 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2022-12-13 12:54:09,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 132 flow [2022-12-13 12:54:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:54:09,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:54:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2022-12-13 12:54:09,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5213178294573644 [2022-12-13 12:54:09,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 269 transitions. [2022-12-13 12:54:09,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 269 transitions. [2022-12-13 12:54:09,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:54:09,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 269 transitions. [2022-12-13 12:54:09,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2022-12-13 12:54:09,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-12-13 12:54:09,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-12-13 12:54:09,805 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 46 flow. Second operand 3 states and 269 transitions. [2022-12-13 12:54:09,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 132 flow [2022-12-13 12:54:09,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 131 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:54:09,806 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 75 flow [2022-12-13 12:54:09,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2022-12-13 12:54:09,807 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2022-12-13 12:54:09,807 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 75 flow [2022-12-13 12:54:09,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2022-12-13 12:54:09,807 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:54:09,807 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:54:09,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:54:09,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:54:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:54:09,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1691695943, now seen corresponding path program 1 times [2022-12-13 12:54:09,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:54:09,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972576966] [2022-12-13 12:54:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:54:09,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:54:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:54:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:54:09,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:54:09,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972576966] [2022-12-13 12:54:09,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972576966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:54:09,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:54:09,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:54:09,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783257938] [2022-12-13 12:54:09,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:54:09,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:54:09,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:54:09,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:54:09,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:54:09,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 172 [2022-12-13 12:54:09,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2022-12-13 12:54:09,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:54:09,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 172 [2022-12-13 12:54:09,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:54:09,967 INFO L130 PetriNetUnfolder]: 170/291 cut-off events. [2022-12-13 12:54:09,967 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-12-13 12:54:09,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 291 events. 170/291 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1018 event pairs, 39 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 750. Up to 120 conditions per place. [2022-12-13 12:54:09,970 INFO L137 encePairwiseOnDemand]: 165/172 looper letters, 29 selfloop transitions, 7 changer transitions 3/41 dead transitions. [2022-12-13 12:54:09,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 41 transitions, 203 flow [2022-12-13 12:54:09,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:54:09,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:54:09,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2022-12-13 12:54:09,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5203488372093024 [2022-12-13 12:54:09,972 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 358 transitions. [2022-12-13 12:54:09,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 358 transitions. [2022-12-13 12:54:09,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:54:09,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 358 transitions. [2022-12-13 12:54:09,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.5) internal successors, (358), 4 states have internal predecessors, (358), 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) [2022-12-13 12:54:09,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2022-12-13 12:54:09,976 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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) [2022-12-13 12:54:09,977 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 75 flow. Second operand 4 states and 358 transitions. [2022-12-13 12:54:09,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 41 transitions, 203 flow [2022-12-13 12:54:09,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 41 transitions, 199 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:54:09,978 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 97 flow [2022-12-13 12:54:09,978 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2022-12-13 12:54:09,979 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-12-13 12:54:09,979 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 97 flow [2022-12-13 12:54:09,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2022-12-13 12:54:09,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:54:09,980 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:54:09,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:54:09,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:54:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:54:09,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1972543705, now seen corresponding path program 1 times [2022-12-13 12:54:09,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:54:09,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720477979] [2022-12-13 12:54:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:54:09,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:54:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:54:10,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:54:10,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:54:10,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720477979] [2022-12-13 12:54:10,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720477979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:54:10,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:54:10,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:54:10,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903418931] [2022-12-13 12:54:10,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:54:10,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:54:10,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:54:10,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:54:10,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:54:10,083 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 172 [2022-12-13 12:54:10,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 97 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2022-12-13 12:54:10,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:54:10,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 172 [2022-12-13 12:54:10,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:54:10,161 INFO L130 PetriNetUnfolder]: 156/265 cut-off events. [2022-12-13 12:54:10,161 INFO L131 PetriNetUnfolder]: For 252/252 co-relation queries the response was YES. [2022-12-13 12:54:10,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 265 events. 156/265 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 920 event pairs, 39 based on Foata normal form. 9/271 useless extension candidates. Maximal degree in co-relation 760. Up to 120 conditions per place. [2022-12-13 12:54:10,163 INFO L137 encePairwiseOnDemand]: 165/172 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2022-12-13 12:54:10,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 183 flow [2022-12-13 12:54:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:54:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:54:10,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 431 transitions. [2022-12-13 12:54:10,164 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5011627906976744 [2022-12-13 12:54:10,165 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 431 transitions. [2022-12-13 12:54:10,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 431 transitions. [2022-12-13 12:54:10,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:54:10,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 431 transitions. [2022-12-13 12:54:10,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 86.2) internal successors, (431), 5 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) [2022-12-13 12:54:10,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2022-12-13 12:54:10,169 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2022-12-13 12:54:10,169 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 97 flow. Second operand 5 states and 431 transitions. [2022-12-13 12:54:10,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 183 flow [2022-12-13 12:54:10,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 159 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 12:54:10,171 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2022-12-13 12:54:10,172 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2022-12-13 12:54:10,172 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2022-12-13 12:54:10,172 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2022-12-13 12:54:10,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2022-12-13 12:54:10,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-12-13 12:54:10,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-13 12:54:10,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-13 12:54:10,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-13 12:54:10,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-13 12:54:10,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-13 12:54:10,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-12-13 12:54:10,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-12-13 12:54:10,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-12-13 12:54:10,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-13 12:54:10,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-13 12:54:10,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-13 12:54:10,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-13 12:54:10,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-12-13 12:54:10,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-12-13 12:54:10,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:54:10,178 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 12:54:10,184 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:54:10,184 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:54:10,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:54:10 BasicIcfg [2022-12-13 12:54:10,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:54:10,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:54:10,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:54:10,188 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:54:10,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:54:07" (3/4) ... [2022-12-13 12:54:10,191 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:54:10,196 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 12:54:10,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 12:54:10,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 12:54:10,201 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-13 12:54:10,201 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 12:54:10,201 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 12:54:10,201 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:54:10,233 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:54:10,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:54:10,234 INFO L158 Benchmark]: Toolchain (without parser) took 3434.38ms. Allocated memory is still 142.6MB. Free memory was 70.5MB in the beginning and 69.7MB in the end (delta: 725.2kB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-12-13 12:54:10,234 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:54:10,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.04ms. Allocated memory is still 142.6MB. Free memory was 70.2MB in the beginning and 98.1MB in the end (delta: -27.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-12-13 12:54:10,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.13ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:54:10,235 INFO L158 Benchmark]: Boogie Preprocessor took 21.39ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:54:10,236 INFO L158 Benchmark]: RCFGBuilder took 317.97ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 78.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:54:10,236 INFO L158 Benchmark]: TraceAbstraction took 2627.40ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 71.8MB in the end (delta: 6.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-12-13 12:54:10,236 INFO L158 Benchmark]: Witness Printer took 45.13ms. Allocated memory is still 142.6MB. Free memory was 71.8MB in the beginning and 69.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:54:10,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.04ms. Allocated memory is still 142.6MB. Free memory was 70.2MB in the beginning and 98.1MB in the end (delta: -27.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.13ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.39ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 317.97ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 78.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2627.40ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 71.8MB in the end (delta: 6.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 45.13ms. Allocated memory is still 142.6MB. Free memory was 71.8MB in the beginning and 69.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 100 PlacesBefore, 32 PlacesAfterwards, 92 TransitionsBefore, 22 TransitionsAfterwards, 2114 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 4992 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2172, independent: 2013, independent conditional: 0, independent unconditional: 2013, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1105, independent: 1069, independent conditional: 0, independent unconditional: 1069, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2172, independent: 944, independent conditional: 0, independent unconditional: 944, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 1105, unknown conditional: 0, unknown unconditional: 1105] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 123 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 12 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 12:54:10,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40bc42c-bf8d-42b2-8fa3-e96249b9ee16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE